Home / 716,214.42-988,380.90-389,527.38

Finding the Fourth Proportional to 716,214.42, 988,380.90 and 389,527.38

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Solution

The fourth proportional to 716,214.42, 988,380.90 and 389,527.38 is: 537,550.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,214.42 : 988,380.90 = 389,527.38 : x
  2. Step 2: Convert to fraction form
    716,214.42/988,380.90 = 389,527.38/x
  3. Step 3: Cross multiply
    716,214.42x = 988,380.90 × 389,527.38
  4. Step 4: Simplify right side
    716,214.42x = 385,001,422,419.04
  5. Step 5: Solve for x
    x = 385,001,422,419.04/716,214.42
  6. Step 6: Final answer
    x = 537,550.50

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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.