Home / 1,587,886.70-2,381,826.36-689,211.92

Finding the Fourth Proportional to 1,587,886.70, 2,381,826.36 and 689,211.92

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Solution

The fourth proportional to 1,587,886.70, 2,381,826.36 and 689,211.92 is: 1,033,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,886.70 : 2,381,826.36 = 689,211.92 : x
  2. Step 2: Convert to fraction form
    1,587,886.70/2,381,826.36 = 689,211.92/x
  3. Step 3: Cross multiply
    1,587,886.70x = 2,381,826.36 × 689,211.92
  4. Step 4: Simplify right side
    1,587,886.70x = 1,641,583,118,682.21
  5. Step 5: Solve for x
    x = 1,641,583,118,682.21/1,587,886.70
  6. Step 6: Final answer
    x = 1,033,816.28

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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.