Home / 718,011.15-1,077,115.13-318,643.08

Finding the Fourth Proportional to 718,011.15, 1,077,115.13 and 318,643.08

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Solution

The fourth proportional to 718,011.15, 1,077,115.13 and 318,643.08 is: 478,008.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,011.15 : 1,077,115.13 = 318,643.08 : x
  2. Step 2: Convert to fraction form
    718,011.15/1,077,115.13 = 318,643.08/x
  3. Step 3: Cross multiply
    718,011.15x = 1,077,115.13 × 318,643.08
  4. Step 4: Simplify right side
    718,011.15x = 343,215,282,537.80
  5. Step 5: Solve for x
    x = 343,215,282,537.80/718,011.15
  6. Step 6: Final answer
    x = 478,008.29

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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.