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Finding the Fourth Proportional to 572,240.76, 789,695.52 and 357,505.56

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Solution

The fourth proportional to 572,240.76, 789,695.52 and 357,505.56 is: 493,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,240.76 : 789,695.52 = 357,505.56 : x
  2. Step 2: Convert to fraction form
    572,240.76/789,695.52 = 357,505.56/x
  3. Step 3: Cross multiply
    572,240.76x = 789,695.52 × 357,505.56
  4. Step 4: Simplify right side
    572,240.76x = 282,320,539,107.09
  5. Step 5: Solve for x
    x = 282,320,539,107.09/572,240.76
  6. Step 6: Final answer
    x = 493,359.72

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Double scale
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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.