Home / 690,932.60-1,034,649.30-512,473.40

Finding the Fourth Proportional to 690,932.60, 1,034,649.30 and 512,473.40

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Solution

The fourth proportional to 690,932.60, 1,034,649.30 and 512,473.40 is: 767,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,932.60 : 1,034,649.30 = 512,473.40 : x
  2. Step 2: Convert to fraction form
    690,932.60/1,034,649.30 = 512,473.40/x
  3. Step 3: Cross multiply
    690,932.60x = 1,034,649.30 × 512,473.40
  4. Step 4: Simplify right side
    690,932.60x = 530,230,244,578.62
  5. Step 5: Solve for x
    x = 530,230,244,578.62/690,932.60
  6. Step 6: Final answer
    x = 767,412.40

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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.