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Finding the Fourth Proportional to 532,645.58, 735,047.15 and 290,928.21

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Solution

The fourth proportional to 532,645.58, 735,047.15 and 290,928.21 is: 401,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,645.58 : 735,047.15 = 290,928.21 : x
  2. Step 2: Convert to fraction form
    532,645.58/735,047.15 = 290,928.21/x
  3. Step 3: Cross multiply
    532,645.58x = 735,047.15 × 290,928.21
  4. Step 4: Simplify right side
    532,645.58x = 213,845,950,160.46
  5. Step 5: Solve for x
    x = 213,845,950,160.46/532,645.58
  6. Step 6: Final answer
    x = 401,478.88

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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.