Home / 420,470.52-580,244.78-229,482.36

Finding the Fourth Proportional to 420,470.52, 580,244.78 and 229,482.36

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Solution

The fourth proportional to 420,470.52, 580,244.78 and 229,482.36 is: 316,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,470.52 : 580,244.78 = 229,482.36 : x
  2. Step 2: Convert to fraction form
    420,470.52/580,244.78 = 229,482.36/x
  3. Step 3: Cross multiply
    420,470.52x = 580,244.78 × 229,482.36
  4. Step 4: Simplify right side
    420,470.52x = 133,155,941,492.08
  5. Step 5: Solve for x
    x = 133,155,941,492.08/420,470.52
  6. Step 6: Final answer
    x = 316,683.18

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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.