Home / 880,808.32-1,215,508.80-478,403.20

Finding the Fourth Proportional to 880,808.32, 1,215,508.80 and 478,403.20

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Solution

The fourth proportional to 880,808.32, 1,215,508.80 and 478,403.20 is: 660,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,808.32 : 1,215,508.80 = 478,403.20 : x
  2. Step 2: Convert to fraction form
    880,808.32/1,215,508.80 = 478,403.20/x
  3. Step 3: Cross multiply
    880,808.32x = 1,215,508.80 × 478,403.20
  4. Step 4: Simplify right side
    880,808.32x = 581,503,299,548.16
  5. Step 5: Solve for x
    x = 581,503,299,548.16/880,808.32
  6. Step 6: Final answer
    x = 660,192.79

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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.