Home / 712,008.33-982,580.72-389,711.51

Finding the Fourth Proportional to 712,008.33, 982,580.72 and 389,711.51

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Solution

The fourth proportional to 712,008.33, 982,580.72 and 389,711.51 is: 537,806.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,008.33 : 982,580.72 = 389,711.51 : x
  2. Step 2: Convert to fraction form
    712,008.33/982,580.72 = 389,711.51/x
  3. Step 3: Cross multiply
    712,008.33x = 982,580.72 × 389,711.51
  4. Step 4: Simplify right side
    712,008.33x = 382,923,009,226.63
  5. Step 5: Solve for x
    x = 382,923,009,226.63/712,008.33
  6. Step 6: Final answer
    x = 537,806.92

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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.