Home / 1,587,881.70-2,381,818.86-689,206.92

Finding the Fourth Proportional to 1,587,881.70, 2,381,818.86 and 689,206.92

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Solution

The fourth proportional to 1,587,881.70, 2,381,818.86 and 689,206.92 is: 1,033,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,881.70 : 2,381,818.86 = 689,206.92 : x
  2. Step 2: Convert to fraction form
    1,587,881.70/2,381,818.86 = 689,206.92/x
  3. Step 3: Cross multiply
    1,587,881.70x = 2,381,818.86 × 689,206.92
  4. Step 4: Simplify right side
    1,587,881.70x = 1,641,566,040,498.51
  5. Step 5: Solve for x
    x = 1,641,566,040,498.51/1,587,881.70
  6. Step 6: Final answer
    x = 1,033,808.78

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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.