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Finding the Fourth Proportional to 532,609.30, 734,999.65 and 290,891.88

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Solution

The fourth proportional to 532,609.30, 734,999.65 and 290,891.88 is: 401,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,609.30 : 734,999.65 = 290,891.88 : x
  2. Step 2: Convert to fraction form
    532,609.30/734,999.65 = 290,891.88/x
  3. Step 3: Cross multiply
    532,609.30x = 734,999.65 × 290,891.88
  4. Step 4: Simplify right side
    532,609.30x = 213,805,429,260.61
  5. Step 5: Solve for x
    x = 213,805,429,260.61/532,609.30
  6. Step 6: Final answer
    x = 401,430.15

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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.