Home / 712,441.67-983,162.12-385,749.08

Finding the Fourth Proportional to 712,441.67, 983,162.12 and 385,749.08

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Solution

The fourth proportional to 712,441.67, 983,162.12 and 385,749.08 is: 532,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,441.67 : 983,162.12 = 385,749.08 : x
  2. Step 2: Convert to fraction form
    712,441.67/983,162.12 = 385,749.08/x
  3. Step 3: Cross multiply
    712,441.67x = 983,162.12 × 385,749.08
  4. Step 4: Simplify right side
    712,441.67x = 379,253,883,280.85
  5. Step 5: Solve for x
    x = 379,253,883,280.85/712,441.67
  6. Step 6: Final answer
    x = 532,329.73

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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.