Home / 578,411.20-867,616.80-410,121.55

Finding the Fourth Proportional to 578,411.20, 867,616.80 and 410,121.55

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Solution

The fourth proportional to 578,411.20, 867,616.80 and 410,121.55 is: 615,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,411.20 : 867,616.80 = 410,121.55 : x
  2. Step 2: Convert to fraction form
    578,411.20/867,616.80 = 410,121.55/x
  3. Step 3: Cross multiply
    578,411.20x = 867,616.80 × 410,121.55
  4. Step 4: Simplify right side
    578,411.20x = 355,828,346,822.04
  5. Step 5: Solve for x
    x = 355,828,346,822.04/578,411.20
  6. Step 6: Final answer
    x = 615,182.33

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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.