Home / 866,147.06-1,195,290.69-478,988.53

Finding the Fourth Proportional to 866,147.06, 1,195,290.69 and 478,988.53

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Solution

The fourth proportional to 866,147.06, 1,195,290.69 and 478,988.53 is: 661,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,147.06 : 1,195,290.69 = 478,988.53 : x
  2. Step 2: Convert to fraction form
    866,147.06/1,195,290.69 = 478,988.53/x
  3. Step 3: Cross multiply
    866,147.06x = 1,195,290.69 × 478,988.53
  4. Step 4: Simplify right side
    866,147.06x = 572,530,525,741.35
  5. Step 5: Solve for x
    x = 572,530,525,741.35/866,147.06
  6. Step 6: Final answer
    x = 661,008.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.