Home / 1,071,247.30-1,478,271.72-587,800.42

Finding the Fourth Proportional to 1,071,247.30, 1,478,271.72 and 587,800.42

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Solution

The fourth proportional to 1,071,247.30, 1,478,271.72 and 587,800.42 is: 811,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,247.30 : 1,478,271.72 = 587,800.42 : x
  2. Step 2: Convert to fraction form
    1,071,247.30/1,478,271.72 = 587,800.42/x
  3. Step 3: Cross multiply
    1,071,247.30x = 1,478,271.72 × 587,800.42
  4. Step 4: Simplify right side
    1,071,247.30x = 868,928,737,890.12
  5. Step 5: Solve for x
    x = 868,928,737,890.12/1,071,247.30
  6. Step 6: Final answer
    x = 811,137.39

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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.