Home / 812,779.92-1,122,184.22-507,321.52

Finding the Fourth Proportional to 812,779.92, 1,122,184.22 and 507,321.52

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Solution

The fourth proportional to 812,779.92, 1,122,184.22 and 507,321.52 is: 700,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,779.92 : 1,122,184.22 = 507,321.52 : x
  2. Step 2: Convert to fraction form
    812,779.92/1,122,184.22 = 507,321.52/x
  3. Step 3: Cross multiply
    812,779.92x = 1,122,184.22 × 507,321.52
  4. Step 4: Simplify right side
    812,779.92x = 569,308,204,210.41
  5. Step 5: Solve for x
    x = 569,308,204,210.41/812,779.92
  6. Step 6: Final answer
    x = 700,445.71

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1.5x scale

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.