Home / 895,321.35-1,235,520.14-487,431.27

Finding the Fourth Proportional to 895,321.35, 1,235,520.14 and 487,431.27

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Solution

The fourth proportional to 895,321.35, 1,235,520.14 and 487,431.27 is: 672,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,321.35 : 1,235,520.14 = 487,431.27 : x
  2. Step 2: Convert to fraction form
    895,321.35/1,235,520.14 = 487,431.27/x
  3. Step 3: Cross multiply
    895,321.35x = 1,235,520.14 × 487,431.27
  4. Step 4: Simplify right side
    895,321.35x = 602,231,148,513.62
  5. Step 5: Solve for x
    x = 602,231,148,513.62/895,321.35
  6. Step 6: Final answer
    x = 672,642.45

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.