Home / 663,446.18-915,521.16-376,926.50

Finding the Fourth Proportional to 663,446.18, 915,521.16 and 376,926.50

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Solution

The fourth proportional to 663,446.18, 915,521.16 and 376,926.50 is: 520,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,446.18 : 915,521.16 = 376,926.50 : x
  2. Step 2: Convert to fraction form
    663,446.18/915,521.16 = 376,926.50/x
  3. Step 3: Cross multiply
    663,446.18x = 915,521.16 × 376,926.50
  4. Step 4: Simplify right side
    663,446.18x = 345,084,186,514.74
  5. Step 5: Solve for x
    x = 345,084,186,514.74/663,446.18
  6. Step 6: Final answer
    x = 520,138.93

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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.