Home / 688,682.23-1,032,431.72-239,344.72

Finding the Fourth Proportional to 688,682.23, 1,032,431.72 and 239,344.72

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Solution

The fourth proportional to 688,682.23, 1,032,431.72 and 239,344.72 is: 358,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,682.23 : 1,032,431.72 = 239,344.72 : x
  2. Step 2: Convert to fraction form
    688,682.23/1,032,431.72 = 239,344.72/x
  3. Step 3: Cross multiply
    688,682.23x = 1,032,431.72 × 239,344.72
  4. Step 4: Simplify right side
    688,682.23x = 247,107,082,326.87
  5. Step 5: Solve for x
    x = 247,107,082,326.87/688,682.23
  6. Step 6: Final answer
    x = 358,811.47

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.