Home / 909,562.78-1,255,688.76-547,067.53

Finding the Fourth Proportional to 909,562.78, 1,255,688.76 and 547,067.53

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Solution

The fourth proportional to 909,562.78, 1,255,688.76 and 547,067.53 is: 755,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,562.78 : 1,255,688.76 = 547,067.53 : x
  2. Step 2: Convert to fraction form
    909,562.78/1,255,688.76 = 547,067.53/x
  3. Step 3: Cross multiply
    909,562.78x = 1,255,688.76 × 547,067.53
  4. Step 4: Simplify right side
    909,562.78x = 686,946,548,381.96
  5. Step 5: Solve for x
    x = 686,946,548,381.96/909,562.78
  6. Step 6: Final answer
    x = 755,249.19

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1.5x scale

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.