Home / 812,868.08-1,122,305.68-507,409.52

Finding the Fourth Proportional to 812,868.08, 1,122,305.68 and 507,409.52

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Solution

The fourth proportional to 812,868.08, 1,122,305.68 and 507,409.52 is: 700,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,868.08 : 1,122,305.68 = 507,409.52 : x
  2. Step 2: Convert to fraction form
    812,868.08/1,122,305.68 = 507,409.52/x
  3. Step 3: Cross multiply
    812,868.08x = 1,122,305.68 × 507,409.52
  4. Step 4: Simplify right side
    812,868.08x = 569,468,586,382.07
  5. Step 5: Solve for x
    x = 569,468,586,382.07/812,868.08
  6. Step 6: Final answer
    x = 700,567.04

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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.