Home / 663,543.03-915,680.64-373,154.50

Finding the Fourth Proportional to 663,543.03, 915,680.64 and 373,154.50

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Solution

The fourth proportional to 663,543.03, 915,680.64 and 373,154.50 is: 514,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,543.03 : 915,680.64 = 373,154.50 : x
  2. Step 2: Convert to fraction form
    663,543.03/915,680.64 = 373,154.50/x
  3. Step 3: Cross multiply
    663,543.03x = 915,680.64 × 373,154.50
  4. Step 4: Simplify right side
    663,543.03x = 341,690,352,735.20
  5. Step 5: Solve for x
    x = 341,690,352,735.20/663,543.03
  6. Step 6: Final answer
    x = 514,948.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.