Home / 977,689.36-1,349,187.78-542,104.48

Finding the Fourth Proportional to 977,689.36, 1,349,187.78 and 542,104.48

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Solution

The fourth proportional to 977,689.36, 1,349,187.78 and 542,104.48 is: 748,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,689.36 : 1,349,187.78 = 542,104.48 : x
  2. Step 2: Convert to fraction form
    977,689.36/1,349,187.78 = 542,104.48/x
  3. Step 3: Cross multiply
    977,689.36x = 1,349,187.78 × 542,104.48
  4. Step 4: Simplify right side
    977,689.36x = 731,400,739,899.25
  5. Step 5: Solve for x
    x = 731,400,739,899.25/977,689.36
  6. Step 6: Final answer
    x = 748,091.13

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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.