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Finding the Fourth Proportional to 676,675.59, 933,776.61 and 386,275.62

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Solution

The fourth proportional to 676,675.59, 933,776.61 and 386,275.62 is: 533,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,675.59 : 933,776.61 = 386,275.62 : x
  2. Step 2: Convert to fraction form
    676,675.59/933,776.61 = 386,275.62/x
  3. Step 3: Cross multiply
    676,675.59x = 933,776.61 × 386,275.62
  4. Step 4: Simplify right side
    676,675.59x = 360,695,138,969.25
  5. Step 5: Solve for x
    x = 360,695,138,969.25/676,675.59
  6. Step 6: Final answer
    x = 533,039.97

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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.