Home / 1,306,470.16-1,959,704.51-407,988.90

Finding the Fourth Proportional to 1,306,470.16, 1,959,704.51 and 407,988.90

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Solution

The fourth proportional to 1,306,470.16, 1,959,704.51 and 407,988.90 is: 611,983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,470.16 : 1,959,704.51 = 407,988.90 : x
  2. Step 2: Convert to fraction form
    1,306,470.16/1,959,704.51 = 407,988.90/x
  3. Step 3: Cross multiply
    1,306,470.16x = 1,959,704.51 × 407,988.90
  4. Step 4: Simplify right side
    1,306,470.16x = 799,537,677,561.42
  5. Step 5: Solve for x
    x = 799,537,677,561.42/1,306,470.16
  6. Step 6: Final answer
    x = 611,983.12

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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.