Home / 718,329.39-1,077,499.47-318,862.77

Finding the Fourth Proportional to 718,329.39, 1,077,499.47 and 318,862.77

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Solution

The fourth proportional to 718,329.39, 1,077,499.47 and 318,862.77 is: 478,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,329.39 : 1,077,499.47 = 318,862.77 : x
  2. Step 2: Convert to fraction form
    718,329.39/1,077,499.47 = 318,862.77/x
  3. Step 3: Cross multiply
    718,329.39x = 1,077,499.47 × 318,862.77
  4. Step 4: Simplify right side
    718,329.39x = 343,574,465,677.73
  5. Step 5: Solve for x
    x = 343,574,465,677.73/718,329.39
  6. Step 6: Final answer
    x = 478,296.55

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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.