Home / 696,005.70-1,044,008.55-428,900.10

Finding the Fourth Proportional to 696,005.70, 1,044,008.55 and 428,900.10

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Solution

The fourth proportional to 696,005.70, 1,044,008.55 and 428,900.10 is: 643,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,005.70 : 1,044,008.55 = 428,900.10 : x
  2. Step 2: Convert to fraction form
    696,005.70/1,044,008.55 = 428,900.10/x
  3. Step 3: Cross multiply
    696,005.70x = 1,044,008.55 × 428,900.10
  4. Step 4: Simplify right side
    696,005.70x = 447,775,371,495.86
  5. Step 5: Solve for x
    x = 447,775,371,495.86/696,005.70
  6. Step 6: Final answer
    x = 643,350.15

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Similar ratio
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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.