Home / 718,326.94-1,077,495.81-318,860.32

Finding the Fourth Proportional to 718,326.94, 1,077,495.81 and 318,860.32

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Solution

The fourth proportional to 718,326.94, 1,077,495.81 and 318,860.32 is: 478,292.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,326.94 : 1,077,495.81 = 318,860.32 : x
  2. Step 2: Convert to fraction form
    718,326.94/1,077,495.81 = 318,860.32/x
  3. Step 3: Cross multiply
    718,326.94x = 1,077,495.81 × 318,860.32
  4. Step 4: Simplify right side
    718,326.94x = 343,570,654,885.79
  5. Step 5: Solve for x
    x = 343,570,654,885.79/718,326.94
  6. Step 6: Final answer
    x = 478,292.87

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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.