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Finding the Fourth Proportional to 539,587.72, 744,641.94 and 297,869.32

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Solution

The fourth proportional to 539,587.72, 744,641.94 and 297,869.32 is: 411,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,587.72 : 744,641.94 = 297,869.32 : x
  2. Step 2: Convert to fraction form
    539,587.72/744,641.94 = 297,869.32/x
  3. Step 3: Cross multiply
    539,587.72x = 744,641.94 × 297,869.32
  4. Step 4: Simplify right side
    539,587.72x = 221,805,988,311.28
  5. Step 5: Solve for x
    x = 221,805,988,311.28/539,587.72
  6. Step 6: Final answer
    x = 411,065.67

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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.