Home / 1,234,242.40-1,703,412.07-690,408.40

Finding the Fourth Proportional to 1,234,242.40, 1,703,412.07 and 690,408.40

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Solution

The fourth proportional to 1,234,242.40, 1,703,412.07 and 690,408.40 is: 952,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,242.40 : 1,703,412.07 = 690,408.40 : x
  2. Step 2: Convert to fraction form
    1,234,242.40/1,703,412.07 = 690,408.40/x
  3. Step 3: Cross multiply
    1,234,242.40x = 1,703,412.07 × 690,408.40
  4. Step 4: Simplify right side
    1,234,242.40x = 1,176,049,989,820.29
  5. Step 5: Solve for x
    x = 1,176,049,989,820.29/1,234,242.40
  6. Step 6: Final answer
    x = 952,851.72

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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.