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Finding the Fourth Proportional to 586,363.89, 808,765.02 and 538,121.61

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Solution

The fourth proportional to 586,363.89, 808,765.02 and 538,121.61 is: 742,224.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,363.89 : 808,765.02 = 538,121.61 : x
  2. Step 2: Convert to fraction form
    586,363.89/808,765.02 = 538,121.61/x
  3. Step 3: Cross multiply
    586,363.89x = 808,765.02 × 538,121.61
  4. Step 4: Simplify right side
    586,363.89x = 435,213,931,975.56
  5. Step 5: Solve for x
    x = 435,213,931,975.56/586,363.89
  6. Step 6: Final answer
    x = 742,224.99

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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.