Home / 745,543.10-1,118,314.65-687,806.30

Finding the Fourth Proportional to 745,543.10, 1,118,314.65 and 687,806.30

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Solution

The fourth proportional to 745,543.10, 1,118,314.65 and 687,806.30 is: 1,031,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,543.10 : 1,118,314.65 = 687,806.30 : x
  2. Step 2: Convert to fraction form
    745,543.10/1,118,314.65 = 687,806.30/x
  3. Step 3: Cross multiply
    745,543.10x = 1,118,314.65 × 687,806.30
  4. Step 4: Simplify right side
    745,543.10x = 769,183,861,652.30
  5. Step 5: Solve for x
    x = 769,183,861,652.30/745,543.10
  6. Step 6: Final answer
    x = 1,031,709.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.