Home / 1,565,821.24-2,160,701.40-868,120.72

Finding the Fourth Proportional to 1,565,821.24, 2,160,701.40 and 868,120.72

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Solution

The fourth proportional to 1,565,821.24, 2,160,701.40 and 868,120.72 is: 1,197,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,821.24 : 2,160,701.40 = 868,120.72 : x
  2. Step 2: Convert to fraction form
    1,565,821.24/2,160,701.40 = 868,120.72/x
  3. Step 3: Cross multiply
    1,565,821.24x = 2,160,701.40 × 868,120.72
  4. Step 4: Simplify right side
    1,565,821.24x = 1,875,749,655,073.01
  5. Step 5: Solve for x
    x = 1,875,749,655,073.01/1,565,821.24
  6. Step 6: Final answer
    x = 1,197,933.46

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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.