Home / 880,931.80-1,215,686.46-478,523.80

Finding the Fourth Proportional to 880,931.80, 1,215,686.46 and 478,523.80

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Solution

The fourth proportional to 880,931.80, 1,215,686.46 and 478,523.80 is: 660,363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,931.80 : 1,215,686.46 = 478,523.80 : x
  2. Step 2: Convert to fraction form
    880,931.80/1,215,686.46 = 478,523.80/x
  3. Step 3: Cross multiply
    880,931.80x = 1,215,686.46 × 478,523.80
  4. Step 4: Simplify right side
    880,931.80x = 581,734,904,447.75
  5. Step 5: Solve for x
    x = 581,734,904,447.75/880,931.80
  6. Step 6: Final answer
    x = 660,363.16

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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.