Home / 718,330.89-1,077,501.72-318,864.27

Finding the Fourth Proportional to 718,330.89, 1,077,501.72 and 318,864.27

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Solution

The fourth proportional to 718,330.89, 1,077,501.72 and 318,864.27 is: 478,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,330.89 : 1,077,501.72 = 318,864.27 : x
  2. Step 2: Convert to fraction form
    718,330.89/1,077,501.72 = 318,864.27/x
  3. Step 3: Cross multiply
    718,330.89x = 1,077,501.72 × 318,864.27
  4. Step 4: Simplify right side
    718,330.89x = 343,576,799,371.54
  5. Step 5: Solve for x
    x = 343,576,799,371.54/718,330.89
  6. Step 6: Final answer
    x = 478,298.80

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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.