Home / 763,451.10-1,145,176.65-480,015.90

Finding the Fourth Proportional to 763,451.10, 1,145,176.65 and 480,015.90

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Solution

The fourth proportional to 763,451.10, 1,145,176.65 and 480,015.90 is: 720,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,451.10 : 1,145,176.65 = 480,015.90 : x
  2. Step 2: Convert to fraction form
    763,451.10/1,145,176.65 = 480,015.90/x
  3. Step 3: Cross multiply
    763,451.10x = 1,145,176.65 × 480,015.90
  4. Step 4: Simplify right side
    763,451.10x = 549,703,000,308.74
  5. Step 5: Solve for x
    x = 549,703,000,308.74/763,451.10
  6. Step 6: Final answer
    x = 720,023.85

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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.