Home / 652,218.20-977,015.10-439,641.80

Finding the Fourth Proportional to 652,218.20, 977,015.10 and 439,641.80

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Solution

The fourth proportional to 652,218.20, 977,015.10 and 439,641.80 is: 658,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,218.20 : 977,015.10 = 439,641.80 : x
  2. Step 2: Convert to fraction form
    652,218.20/977,015.10 = 439,641.80/x
  3. Step 3: Cross multiply
    652,218.20x = 977,015.10 × 439,641.80
  4. Step 4: Simplify right side
    652,218.20x = 429,536,677,191.18
  5. Step 5: Solve for x
    x = 429,536,677,191.18/652,218.20
  6. Step 6: Final answer
    x = 658,578.18

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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.