Home / 718,329.25-1,077,499.28-318,862.63

Finding the Fourth Proportional to 718,329.25, 1,077,499.28 and 318,862.63

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Solution

The fourth proportional to 718,329.25, 1,077,499.28 and 318,862.63 is: 478,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,329.25 : 1,077,499.28 = 318,862.63 : x
  2. Step 2: Convert to fraction form
    718,329.25/1,077,499.28 = 318,862.63/x
  3. Step 3: Cross multiply
    718,329.25x = 1,077,499.28 × 318,862.63
  4. Step 4: Simplify right side
    718,329.25x = 343,574,254,243.91
  5. Step 5: Solve for x
    x = 343,574,254,243.91/718,329.25
  6. Step 6: Final answer
    x = 478,296.34

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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.