Home / 991,147.02-1,367,673.19-549,610.49

Finding the Fourth Proportional to 991,147.02, 1,367,673.19 and 549,610.49

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Solution

The fourth proportional to 991,147.02, 1,367,673.19 and 549,610.49 is: 758,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,147.02 : 1,367,673.19 = 549,610.49 : x
  2. Step 2: Convert to fraction form
    991,147.02/1,367,673.19 = 549,610.49/x
  3. Step 3: Cross multiply
    991,147.02x = 1,367,673.19 × 549,610.49
  4. Step 4: Simplify right side
    991,147.02x = 751,687,529,367.71
  5. Step 5: Solve for x
    x = 751,687,529,367.71/991,147.02
  6. Step 6: Final answer
    x = 758,401.65

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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.