Home / 718,802.25-1,078,089.12-238,990.15

Finding the Fourth Proportional to 718,802.25, 1,078,089.12 and 238,990.15

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Solution

The fourth proportional to 718,802.25, 1,078,089.12 and 238,990.15 is: 358,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,802.25 : 1,078,089.12 = 238,990.15 : x
  2. Step 2: Convert to fraction form
    718,802.25/1,078,089.12 = 238,990.15/x
  3. Step 3: Cross multiply
    718,802.25x = 1,078,089.12 × 238,990.15
  4. Step 4: Simplify right side
    718,802.25x = 257,652,680,502.17
  5. Step 5: Solve for x
    x = 257,652,680,502.17/718,802.25
  6. Step 6: Final answer
    x = 358,447.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.