Home / 917,314.65-1,375,627.50-318,131.31

Finding the Fourth Proportional to 917,314.65, 1,375,627.50 and 318,131.31

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Solution

The fourth proportional to 917,314.65, 1,375,627.50 and 318,131.31 is: 477,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,314.65 : 1,375,627.50 = 318,131.31 : x
  2. Step 2: Convert to fraction form
    917,314.65/1,375,627.50 = 318,131.31/x
  3. Step 3: Cross multiply
    917,314.65x = 1,375,627.50 × 318,131.31
  4. Step 4: Simplify right side
    917,314.65x = 437,630,178,647.03
  5. Step 5: Solve for x
    x = 437,630,178,647.03/917,314.65
  6. Step 6: Final answer
    x = 477,077.50

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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.