Home / 2,117,420.33-3,174,344.69-918,439.92

Finding the Fourth Proportional to 2,117,420.33, 3,174,344.69 and 918,439.92

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Solution

The fourth proportional to 2,117,420.33, 3,174,344.69 and 918,439.92 is: 1,376,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,420.33 : 3,174,344.69 = 918,439.92 : x
  2. Step 2: Convert to fraction form
    2,117,420.33/3,174,344.69 = 918,439.92/x
  3. Step 3: Cross multiply
    2,117,420.33x = 3,174,344.69 × 918,439.92
  4. Step 4: Simplify right side
    2,117,420.33x = 2,915,444,878,543.83
  5. Step 5: Solve for x
    x = 2,915,444,878,543.83/2,117,420.33
  6. Step 6: Final answer
    x = 1,376,885.28

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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.