Home / 909,561.78-1,255,687.38-547,066.53

Finding the Fourth Proportional to 909,561.78, 1,255,687.38 and 547,066.53

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Solution

The fourth proportional to 909,561.78, 1,255,687.38 and 547,066.53 is: 755,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,561.78 : 1,255,687.38 = 547,066.53 : x
  2. Step 2: Convert to fraction form
    909,561.78/1,255,687.38 = 547,066.53/x
  3. Step 3: Cross multiply
    909,561.78x = 1,255,687.38 × 547,066.53
  4. Step 4: Simplify right side
    909,561.78x = 686,944,537,741.39
  5. Step 5: Solve for x
    x = 686,944,537,741.39/909,561.78
  6. Step 6: Final answer
    x = 755,247.80

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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.