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Finding the Fourth Proportional to 669,304.95, 922,860.45 and 499,243.83

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Solution

The fourth proportional to 669,304.95, 922,860.45 and 499,243.83 is: 688,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,304.95 : 922,860.45 = 499,243.83 : x
  2. Step 2: Convert to fraction form
    669,304.95/922,860.45 = 499,243.83/x
  3. Step 3: Cross multiply
    669,304.95x = 922,860.45 × 499,243.83
  4. Step 4: Simplify right side
    669,304.95x = 460,732,385,613.52
  5. Step 5: Solve for x
    x = 460,732,385,613.52/669,304.95
  6. Step 6: Final answer
    x = 688,374.39

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1.5x scale

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.