Home / 712,024.51-982,595.30-389,755.18

Finding the Fourth Proportional to 712,024.51, 982,595.30 and 389,755.18

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Solution

The fourth proportional to 712,024.51, 982,595.30 and 389,755.18 is: 537,862.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,024.51 : 982,595.30 = 389,755.18 : x
  2. Step 2: Convert to fraction form
    712,024.51/982,595.30 = 389,755.18/x
  3. Step 3: Cross multiply
    712,024.51x = 982,595.30 × 389,755.18
  4. Step 4: Simplify right side
    712,024.51x = 382,971,606,069.88
  5. Step 5: Solve for x
    x = 382,971,606,069.88/712,024.51
  6. Step 6: Final answer
    x = 537,862.95

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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.