Home / 711,617.27-982,158.25-421,389.93

Finding the Fourth Proportional to 711,617.27, 982,158.25 and 421,389.93

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Solution

The fourth proportional to 711,617.27, 982,158.25 and 421,389.93 is: 581,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,617.27 : 982,158.25 = 421,389.93 : x
  2. Step 2: Convert to fraction form
    711,617.27/982,158.25 = 421,389.93/x
  3. Step 3: Cross multiply
    711,617.27x = 982,158.25 × 421,389.93
  4. Step 4: Simplify right side
    711,617.27x = 413,871,595,162.95
  5. Step 5: Solve for x
    x = 413,871,595,162.95/711,617.27
  6. Step 6: Final answer
    x = 581,592.97

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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.