Home / 420,265.92-579,966.24-229,279.32

Finding the Fourth Proportional to 420,265.92, 579,966.24 and 229,279.32

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Solution

The fourth proportional to 420,265.92, 579,966.24 and 229,279.32 is: 316,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,265.92 : 579,966.24 = 229,279.32 : x
  2. Step 2: Convert to fraction form
    420,265.92/579,966.24 = 229,279.32/x
  3. Step 3: Cross multiply
    420,265.92x = 579,966.24 × 229,279.32
  4. Step 4: Simplify right side
    420,265.92x = 132,974,265,130.16
  5. Step 5: Solve for x
    x = 132,974,265,130.16/420,265.92
  6. Step 6: Final answer
    x = 316,405.06

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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.