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Finding the Fourth Proportional to 566,483.65, 781,765.04 and 308,377.78

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Solution

The fourth proportional to 566,483.65, 781,765.04 and 308,377.78 is: 425,570.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,483.65 : 781,765.04 = 308,377.78 : x
  2. Step 2: Convert to fraction form
    566,483.65/781,765.04 = 308,377.78/x
  3. Step 3: Cross multiply
    566,483.65x = 781,765.04 × 308,377.78
  4. Step 4: Simplify right side
    566,483.65x = 241,078,962,066.10
  5. Step 5: Solve for x
    x = 241,078,962,066.10/566,483.65
  6. Step 6: Final answer
    x = 425,570.91

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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.