Home / 871,950.04-1,306,032.20-421,726.80

Finding the Fourth Proportional to 871,950.04, 1,306,032.20 and 421,726.80

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Solution

The fourth proportional to 871,950.04, 1,306,032.20 and 421,726.80 is: 631,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,950.04 : 1,306,032.20 = 421,726.80 : x
  2. Step 2: Convert to fraction form
    871,950.04/1,306,032.20 = 421,726.80/x
  3. Step 3: Cross multiply
    871,950.04x = 1,306,032.20 × 421,726.80
  4. Step 4: Simplify right side
    871,950.04x = 550,788,780,402.96
  5. Step 5: Solve for x
    x = 550,788,780,402.96/871,950.04
  6. Step 6: Final answer
    x = 631,674.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.