Home / 2,159,686.13-3,240,062.02-643,363.16

Finding the Fourth Proportional to 2,159,686.13, 3,240,062.02 and 643,363.16

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Solution

The fourth proportional to 2,159,686.13, 3,240,062.02 and 643,363.16 is: 965,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,686.13 : 3,240,062.02 = 643,363.16 : x
  2. Step 2: Convert to fraction form
    2,159,686.13/3,240,062.02 = 643,363.16/x
  3. Step 3: Cross multiply
    2,159,686.13x = 3,240,062.02 × 643,363.16
  4. Step 4: Simplify right side
    2,159,686.13x = 2,084,536,553,534.56
  5. Step 5: Solve for x
    x = 2,084,536,553,534.56/2,159,686.13
  6. Step 6: Final answer
    x = 965,203.48

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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.