Home / 712,022.40-982,552.86-389,670.17

Finding the Fourth Proportional to 712,022.40, 982,552.86 and 389,670.17

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Solution

The fourth proportional to 712,022.40, 982,552.86 and 389,670.17 is: 537,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,022.40 : 982,552.86 = 389,670.17 : x
  2. Step 2: Convert to fraction form
    712,022.40/982,552.86 = 389,670.17/x
  3. Step 3: Cross multiply
    712,022.40x = 982,552.86 × 389,670.17
  4. Step 4: Simplify right side
    712,022.40x = 382,871,535,077.42
  5. Step 5: Solve for x
    x = 382,871,535,077.42/712,022.40
  6. Step 6: Final answer
    x = 537,724.00

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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.