Home / 688,237.80-1,032,356.70-546,520.20

Finding the Fourth Proportional to 688,237.80, 1,032,356.70 and 546,520.20

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Solution

The fourth proportional to 688,237.80, 1,032,356.70 and 546,520.20 is: 819,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,237.80 : 1,032,356.70 = 546,520.20 : x
  2. Step 2: Convert to fraction form
    688,237.80/1,032,356.70 = 546,520.20/x
  3. Step 3: Cross multiply
    688,237.80x = 1,032,356.70 × 546,520.20
  4. Step 4: Simplify right side
    688,237.80x = 564,203,790,155.34
  5. Step 5: Solve for x
    x = 564,203,790,155.34/688,237.80
  6. Step 6: Final answer
    x = 819,780.30

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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.