Home / 712,019.44-982,587.12-389,731.16

Finding the Fourth Proportional to 712,019.44, 982,587.12 and 389,731.16

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Solution

The fourth proportional to 712,019.44, 982,587.12 and 389,731.16 is: 537,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,019.44 : 982,587.12 = 389,731.16 : x
  2. Step 2: Convert to fraction form
    712,019.44/982,587.12 = 389,731.16/x
  3. Step 3: Cross multiply
    712,019.44x = 982,587.12 × 389,731.16
  4. Step 4: Simplify right side
    712,019.44x = 382,944,818,078.66
  5. Step 5: Solve for x
    x = 382,944,818,078.66/712,019.44
  6. Step 6: Final answer
    x = 537,829.16

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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.