Home / 763,059.90-1,144,830.42-478,948.08

Finding the Fourth Proportional to 763,059.90, 1,144,830.42 and 478,948.08

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Solution

The fourth proportional to 763,059.90, 1,144,830.42 and 478,948.08 is: 718,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,059.90 : 1,144,830.42 = 478,948.08 : x
  2. Step 2: Convert to fraction form
    763,059.90/1,144,830.42 = 478,948.08/x
  3. Step 3: Cross multiply
    763,059.90x = 1,144,830.42 × 478,948.08
  4. Step 4: Simplify right side
    763,059.90x = 548,314,331,584.59
  5. Step 5: Solve for x
    x = 548,314,331,584.59/763,059.90
  6. Step 6: Final answer
    x = 718,573.12

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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.