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Finding the Fourth Proportional to 614,869.70, 922,304.55 and 445,595.90

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Solution

The fourth proportional to 614,869.70, 922,304.55 and 445,595.90 is: 668,393.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,869.70 : 922,304.55 = 445,595.90 : x
  2. Step 2: Convert to fraction form
    614,869.70/922,304.55 = 445,595.90/x
  3. Step 3: Cross multiply
    614,869.70x = 922,304.55 × 445,595.90
  4. Step 4: Simplify right side
    614,869.70x = 410,975,126,031.35
  5. Step 5: Solve for x
    x = 410,975,126,031.35/614,869.70
  6. Step 6: Final answer
    x = 668,393.85

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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.