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Finding the Fourth Proportional to 542,547.67, 813,542.67 and 318,350.10

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Solution

The fourth proportional to 542,547.67, 813,542.67 and 318,350.10 is: 477,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,547.67 : 813,542.67 = 318,350.10 : x
  2. Step 2: Convert to fraction form
    542,547.67/813,542.67 = 318,350.10/x
  3. Step 3: Cross multiply
    542,547.67x = 813,542.67 × 318,350.10
  4. Step 4: Simplify right side
    542,547.67x = 258,991,390,348.77
  5. Step 5: Solve for x
    x = 258,991,390,348.77/542,547.67
  6. Step 6: Final answer
    x = 477,361.54

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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.