Home / 880,923.78-1,215,642.33-478,507.14

Finding the Fourth Proportional to 880,923.78, 1,215,642.33 and 478,507.14

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Solution

The fourth proportional to 880,923.78, 1,215,642.33 and 478,507.14 is: 660,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,923.78 : 1,215,642.33 = 478,507.14 : x
  2. Step 2: Convert to fraction form
    880,923.78/1,215,642.33 = 478,507.14/x
  3. Step 3: Cross multiply
    880,923.78x = 1,215,642.33 × 478,507.14
  4. Step 4: Simplify right side
    880,923.78x = 581,693,534,591.24
  5. Step 5: Solve for x
    x = 581,693,534,591.24/880,923.78
  6. Step 6: Final answer
    x = 660,322.21

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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.