Home / 812,776.92-1,122,180.08-507,318.52

Finding the Fourth Proportional to 812,776.92, 1,122,180.08 and 507,318.52

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Solution

The fourth proportional to 812,776.92, 1,122,180.08 and 507,318.52 is: 700,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,776.92 : 1,122,180.08 = 507,318.52 : x
  2. Step 2: Convert to fraction form
    812,776.92/1,122,180.08 = 507,318.52/x
  3. Step 3: Cross multiply
    812,776.92x = 1,122,180.08 × 507,318.52
  4. Step 4: Simplify right side
    812,776.92x = 569,302,737,359.08
  5. Step 5: Solve for x
    x = 569,302,737,359.08/812,776.92
  6. Step 6: Final answer
    x = 700,441.56

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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.