Home / 917,244.90-1,375,802.55-318,060.90

Finding the Fourth Proportional to 917,244.90, 1,375,802.55 and 318,060.90

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Solution

The fourth proportional to 917,244.90, 1,375,802.55 and 318,060.90 is: 477,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,244.90 : 1,375,802.55 = 318,060.90 : x
  2. Step 2: Convert to fraction form
    917,244.90/1,375,802.55 = 318,060.90/x
  3. Step 3: Cross multiply
    917,244.90x = 1,375,802.55 × 318,060.90
  4. Step 4: Simplify right side
    917,244.90x = 437,588,997,275.30
  5. Step 5: Solve for x
    x = 437,588,997,275.30/917,244.90
  6. Step 6: Final answer
    x = 477,068.88

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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.