Home / 861,856.38-1,289,635.20-507,037.50

Finding the Fourth Proportional to 861,856.38, 1,289,635.20 and 507,037.50

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Solution

The fourth proportional to 861,856.38, 1,289,635.20 and 507,037.50 is: 758,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,856.38 : 1,289,635.20 = 507,037.50 : x
  2. Step 2: Convert to fraction form
    861,856.38/1,289,635.20 = 507,037.50/x
  3. Step 3: Cross multiply
    861,856.38x = 1,289,635.20 × 507,037.50
  4. Step 4: Simplify right side
    861,856.38x = 653,893,407,720
  5. Step 5: Solve for x
    x = 653,893,407,720/861,856.38
  6. Step 6: Final answer
    x = 758,703.45

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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.