Home / 420,582.06-580,402.98-229,595.40

Finding the Fourth Proportional to 420,582.06, 580,402.98 and 229,595.40

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Solution

The fourth proportional to 420,582.06, 580,402.98 and 229,595.40 is: 316,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,582.06 : 580,402.98 = 229,595.40 : x
  2. Step 2: Convert to fraction form
    420,582.06/580,402.98 = 229,595.40/x
  3. Step 3: Cross multiply
    420,582.06x = 580,402.98 × 229,595.40
  4. Step 4: Simplify right side
    420,582.06x = 133,257,854,354.29
  5. Step 5: Solve for x
    x = 133,257,854,354.29/420,582.06
  6. Step 6: Final answer
    x = 316,841.51

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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.