Home / 420,335.04-580,062.40-269,432.40

Finding the Fourth Proportional to 420,335.04, 580,062.40 and 269,432.40

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Solution

The fourth proportional to 420,335.04, 580,062.40 and 269,432.40 is: 371,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,335.04 : 580,062.40 = 269,432.40 : x
  2. Step 2: Convert to fraction form
    420,335.04/580,062.40 = 269,432.40/x
  3. Step 3: Cross multiply
    420,335.04x = 580,062.40 × 269,432.40
  4. Step 4: Simplify right side
    420,335.04x = 156,287,604,581.76
  5. Step 5: Solve for x
    x = 156,287,604,581.76/420,335.04
  6. Step 6: Final answer
    x = 371,816.74

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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.