Home / 712,029.18-982,562.19-389,676.90

Finding the Fourth Proportional to 712,029.18, 982,562.19 and 389,676.90

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Solution

The fourth proportional to 712,029.18, 982,562.19 and 389,676.90 is: 537,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,029.18 : 982,562.19 = 389,676.90 : x
  2. Step 2: Convert to fraction form
    712,029.18/982,562.19 = 389,676.90/x
  3. Step 3: Cross multiply
    712,029.18x = 982,562.19 × 389,676.90
  4. Step 4: Simplify right side
    712,029.18x = 382,881,788,256.41
  5. Step 5: Solve for x
    x = 382,881,788,256.41/712,029.18
  6. Step 6: Final answer
    x = 537,733.28

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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.