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Finding the Fourth Proportional to 501,777.30, 752,665.95 and 289,200.90

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Solution

The fourth proportional to 501,777.30, 752,665.95 and 289,200.90 is: 433,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,777.30 : 752,665.95 = 289,200.90 : x
  2. Step 2: Convert to fraction form
    501,777.30/752,665.95 = 289,200.90/x
  3. Step 3: Cross multiply
    501,777.30x = 752,665.95 × 289,200.90
  4. Step 4: Simplify right side
    501,777.30x = 217,671,670,139.36
  5. Step 5: Solve for x
    x = 217,671,670,139.36/501,777.30
  6. Step 6: Final answer
    x = 433,801.35

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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.