Home / 717,495.76-1,075,505.16-318,324.52

Finding the Fourth Proportional to 717,495.76, 1,075,505.16 and 318,324.52

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Solution

The fourth proportional to 717,495.76, 1,075,505.16 and 318,324.52 is: 477,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,495.76 : 1,075,505.16 = 318,324.52 : x
  2. Step 2: Convert to fraction form
    717,495.76/1,075,505.16 = 318,324.52/x
  3. Step 3: Cross multiply
    717,495.76x = 1,075,505.16 × 318,324.52
  4. Step 4: Simplify right side
    717,495.76x = 342,359,663,814.52
  5. Step 5: Solve for x
    x = 342,359,663,814.52/717,495.76
  6. Step 6: Final answer
    x = 477,159.15

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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.