Home / 663,532.83-915,664.32-369,171.18

Finding the Fourth Proportional to 663,532.83, 915,664.32 and 369,171.18

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Solution

The fourth proportional to 663,532.83, 915,664.32 and 369,171.18 is: 509,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,532.83 : 915,664.32 = 369,171.18 : x
  2. Step 2: Convert to fraction form
    663,532.83/915,664.32 = 369,171.18/x
  3. Step 3: Cross multiply
    663,532.83x = 915,664.32 × 369,171.18
  4. Step 4: Simplify right side
    663,532.83x = 338,036,877,498.30
  5. Step 5: Solve for x
    x = 338,036,877,498.30/663,532.83
  6. Step 6: Final answer
    x = 509,450.12

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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.