Home / 718,326.75-1,077,495.53-318,860.13

Finding the Fourth Proportional to 718,326.75, 1,077,495.53 and 318,860.13

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Solution

The fourth proportional to 718,326.75, 1,077,495.53 and 318,860.13 is: 478,292.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,326.75 : 1,077,495.53 = 318,860.13 : x
  2. Step 2: Convert to fraction form
    718,326.75/1,077,495.53 = 318,860.13/x
  3. Step 3: Cross multiply
    718,326.75x = 1,077,495.53 × 318,860.13
  4. Step 4: Simplify right side
    718,326.75x = 343,570,363,175.92
  5. Step 5: Solve for x
    x = 343,570,363,175.92/718,326.75
  6. Step 6: Final answer
    x = 478,292.59

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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.