Home / 880,851.78-1,215,576.66-478,443.78

Finding the Fourth Proportional to 880,851.78, 1,215,576.66 and 478,443.78

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Solution

The fourth proportional to 880,851.78, 1,215,576.66 and 478,443.78 is: 660,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,851.78 : 1,215,576.66 = 478,443.78 : x
  2. Step 2: Convert to fraction form
    880,851.78/1,215,576.66 = 478,443.78/x
  3. Step 3: Cross multiply
    880,851.78x = 1,215,576.66 × 478,443.78
  4. Step 4: Simplify right side
    880,851.78x = 581,585,092,090.18
  5. Step 5: Solve for x
    x = 581,585,092,090.18/880,851.78
  6. Step 6: Final answer
    x = 660,253.07

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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.