Home / 688,557.45-1,032,835.37-239,278.35

Finding the Fourth Proportional to 688,557.45, 1,032,835.37 and 239,278.35

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Solution

The fourth proportional to 688,557.45, 1,032,835.37 and 239,278.35 is: 358,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,557.45 : 1,032,835.37 = 239,278.35 : x
  2. Step 2: Convert to fraction form
    688,557.45/1,032,835.37 = 239,278.35/x
  3. Step 3: Cross multiply
    688,557.45x = 1,032,835.37 × 239,278.35
  4. Step 4: Simplify right side
    688,557.45x = 247,135,143,155.24
  5. Step 5: Solve for x
    x = 247,135,143,155.24/688,557.45
  6. Step 6: Final answer
    x = 358,917.25

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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.