Home / 2,117,384.20-3,174,290.86-918,403.57

Finding the Fourth Proportional to 2,117,384.20, 3,174,290.86 and 918,403.57

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Solution

The fourth proportional to 2,117,384.20, 3,174,290.86 and 918,403.57 is: 1,376,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,384.20 : 3,174,290.86 = 918,403.57 : x
  2. Step 2: Convert to fraction form
    2,117,384.20/3,174,290.86 = 918,403.57/x
  3. Step 3: Cross multiply
    2,117,384.20x = 3,174,290.86 × 918,403.57
  4. Step 4: Simplify right side
    2,117,384.20x = 2,915,280,058,042.37
  5. Step 5: Solve for x
    x = 2,915,280,058,042.37/2,117,384.20
  6. Step 6: Final answer
    x = 1,376,830.93

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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.