Home / 1,220,255.76-1,829,164.32-579,432

Finding the Fourth Proportional to 1,220,255.76, 1,829,164.32 and 579,432

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Solution

The fourth proportional to 1,220,255.76, 1,829,164.32 and 579,432 is: 868,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,255.76 : 1,829,164.32 = 579,432 : x
  2. Step 2: Convert to fraction form
    1,220,255.76/1,829,164.32 = 579,432/x
  3. Step 3: Cross multiply
    1,220,255.76x = 1,829,164.32 × 579,432
  4. Step 4: Simplify right side
    1,220,255.76x = 1,059,876,340,266.24
  5. Step 5: Solve for x
    x = 1,059,876,340,266.24/1,220,255.76
  6. Step 6: Final answer
    x = 868,569.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.