Home / 702,217.20-1,051,543.80-386,317.20

Finding the Fourth Proportional to 702,217.20, 1,051,543.80 and 386,317.20

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Solution

The fourth proportional to 702,217.20, 1,051,543.80 and 386,317.20 is: 578,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,217.20 : 1,051,543.80 = 386,317.20 : x
  2. Step 2: Convert to fraction form
    702,217.20/1,051,543.80 = 386,317.20/x
  3. Step 3: Cross multiply
    702,217.20x = 1,051,543.80 × 386,317.20
  4. Step 4: Simplify right side
    702,217.20x = 406,229,456,493.36
  5. Step 5: Solve for x
    x = 406,229,456,493.36/702,217.20
  6. Step 6: Final answer
    x = 578,495.45

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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.