Home / 880,827.75-1,215,543.51-478,419.75

Finding the Fourth Proportional to 880,827.75, 1,215,543.51 and 478,419.75

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Solution

The fourth proportional to 880,827.75, 1,215,543.51 and 478,419.75 is: 660,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,827.75 : 1,215,543.51 = 478,419.75 : x
  2. Step 2: Convert to fraction form
    880,827.75/1,215,543.51 = 478,419.75/x
  3. Step 3: Cross multiply
    880,827.75x = 1,215,543.51 × 478,419.75
  4. Step 4: Simplify right side
    880,827.75x = 581,540,022,168.32
  5. Step 5: Solve for x
    x = 581,540,022,168.32/880,827.75
  6. Step 6: Final answer
    x = 660,219.91

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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.