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Finding the Fourth Proportional to 578,281.95, 866,627.13 and 492,448.68

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Solution

The fourth proportional to 578,281.95, 866,627.13 and 492,448.68 is: 737,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,281.95 : 866,627.13 = 492,448.68 : x
  2. Step 2: Convert to fraction form
    578,281.95/866,627.13 = 492,448.68/x
  3. Step 3: Cross multiply
    578,281.95x = 866,627.13 × 492,448.68
  4. Step 4: Simplify right side
    578,281.95x = 426,769,386,220.69
  5. Step 5: Solve for x
    x = 426,769,386,220.69/578,281.95
  6. Step 6: Final answer
    x = 737,995.34

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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.