Home / 712,008.17-982,580.50-389,711.35

Finding the Fourth Proportional to 712,008.17, 982,580.50 and 389,711.35

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Solution

The fourth proportional to 712,008.17, 982,580.50 and 389,711.35 is: 537,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,008.17 : 982,580.50 = 389,711.35 : x
  2. Step 2: Convert to fraction form
    712,008.17/982,580.50 = 389,711.35/x
  3. Step 3: Cross multiply
    712,008.17x = 982,580.50 × 389,711.35
  4. Step 4: Simplify right side
    712,008.17x = 382,922,768,225.77
  5. Step 5: Solve for x
    x = 382,922,768,225.77/712,008.17
  6. Step 6: Final answer
    x = 537,806.71

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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.