Home / 710,849.46-980,972.18-388,560.84

Finding the Fourth Proportional to 710,849.46, 980,972.18 and 388,560.84

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Solution

The fourth proportional to 710,849.46, 980,972.18 and 388,560.84 is: 536,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,849.46 : 980,972.18 = 388,560.84 : x
  2. Step 2: Convert to fraction form
    710,849.46/980,972.18 = 388,560.84/x
  3. Step 3: Cross multiply
    710,849.46x = 980,972.18 × 388,560.84
  4. Step 4: Simplify right side
    710,849.46x = 381,167,374,277.43
  5. Step 5: Solve for x
    x = 381,167,374,277.43/710,849.46
  6. Step 6: Final answer
    x = 536,213.92

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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.