Home / 856,391.18-1,181,669.61-488,700.43

Finding the Fourth Proportional to 856,391.18, 1,181,669.61 and 488,700.43

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Solution

The fourth proportional to 856,391.18, 1,181,669.61 and 488,700.43 is: 674,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,391.18 : 1,181,669.61 = 488,700.43 : x
  2. Step 2: Convert to fraction form
    856,391.18/1,181,669.61 = 488,700.43/x
  3. Step 3: Cross multiply
    856,391.18x = 1,181,669.61 × 488,700.43
  4. Step 4: Simplify right side
    856,391.18x = 577,482,446,524.93
  5. Step 5: Solve for x
    x = 577,482,446,524.93/856,391.18
  6. Step 6: Final answer
    x = 674,320.87

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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.