Home / 747,302.10-1,123,905.60-670,538.40

Finding the Fourth Proportional to 747,302.10, 1,123,905.60 and 670,538.40

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Solution

The fourth proportional to 747,302.10, 1,123,905.60 and 670,538.40 is: 1,008,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,302.10 : 1,123,905.60 = 670,538.40 : x
  2. Step 2: Convert to fraction form
    747,302.10/1,123,905.60 = 670,538.40/x
  3. Step 3: Cross multiply
    747,302.10x = 1,123,905.60 × 670,538.40
  4. Step 4: Simplify right side
    747,302.10x = 753,621,862,775.04
  5. Step 5: Solve for x
    x = 753,621,862,775.04/747,302.10
  6. Step 6: Final answer
    x = 1,008,456.77

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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.