Home / 718,331.36-1,077,502.46-318,864.76

Finding the Fourth Proportional to 718,331.36, 1,077,502.46 and 318,864.76

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Solution

The fourth proportional to 718,331.36, 1,077,502.46 and 318,864.76 is: 478,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,331.36 : 1,077,502.46 = 318,864.76 : x
  2. Step 2: Convert to fraction form
    718,331.36/1,077,502.46 = 318,864.76/x
  3. Step 3: Cross multiply
    718,331.36x = 1,077,502.46 × 318,864.76
  4. Step 4: Simplify right side
    718,331.36x = 343,577,563,307.31
  5. Step 5: Solve for x
    x = 343,577,563,307.31/718,331.36
  6. Step 6: Final answer
    x = 478,299.55

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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.