Home / 841,002.15-1,261,704.11-280,041.51

Finding the Fourth Proportional to 841,002.15, 1,261,704.11 and 280,041.51

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Solution

The fourth proportional to 841,002.15, 1,261,704.11 and 280,041.51 is: 420,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,002.15 : 1,261,704.11 = 280,041.51 : x
  2. Step 2: Convert to fraction form
    841,002.15/1,261,704.11 = 280,041.51/x
  3. Step 3: Cross multiply
    841,002.15x = 1,261,704.11 × 280,041.51
  4. Step 4: Simplify right side
    841,002.15x = 353,329,522,737.40
  5. Step 5: Solve for x
    x = 353,329,522,737.40/841,002.15
  6. Step 6: Final answer
    x = 420,129.16

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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.