Home / 909,585.78-1,255,720.50-547,090.56

Finding the Fourth Proportional to 909,585.78, 1,255,720.50 and 547,090.56

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Solution

The fourth proportional to 909,585.78, 1,255,720.50 and 547,090.56 is: 755,280.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,585.78 : 1,255,720.50 = 547,090.56 : x
  2. Step 2: Convert to fraction form
    909,585.78/1,255,720.50 = 547,090.56/x
  3. Step 3: Cross multiply
    909,585.78x = 1,255,720.50 × 547,090.56
  4. Step 4: Simplify right side
    909,585.78x = 686,992,831,548.48
  5. Step 5: Solve for x
    x = 686,992,831,548.48/909,585.78
  6. Step 6: Final answer
    x = 755,280.97

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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.