Home / 712,002.45-982,561.73-389,709.74

Finding the Fourth Proportional to 712,002.45, 982,561.73 and 389,709.74

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Solution

The fourth proportional to 712,002.45, 982,561.73 and 389,709.74 is: 537,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,002.45 : 982,561.73 = 389,709.74 : x
  2. Step 2: Convert to fraction form
    712,002.45/982,561.73 = 389,709.74/x
  3. Step 3: Cross multiply
    712,002.45x = 982,561.73 × 389,709.74
  4. Step 4: Simplify right side
    712,002.45x = 382,913,869,470.89
  5. Step 5: Solve for x
    x = 382,913,869,470.89/712,002.45
  6. Step 6: Final answer
    x = 537,798.53

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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.