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Finding the Fourth Proportional to 620,491.48, 930,937.86 and 304,726.96

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Solution

The fourth proportional to 620,491.48, 930,937.86 and 304,726.96 is: 457,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,491.48 : 930,937.86 = 304,726.96 : x
  2. Step 2: Convert to fraction form
    620,491.48/930,937.86 = 304,726.96/x
  3. Step 3: Cross multiply
    620,491.48x = 930,937.86 × 304,726.96
  4. Step 4: Simplify right side
    620,491.48x = 283,681,864,026.71
  5. Step 5: Solve for x
    x = 283,681,864,026.71/620,491.48
  6. Step 6: Final answer
    x = 457,188.98

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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.