Home / 1,587,812.67-2,381,715.36-689,137.92

Finding the Fourth Proportional to 1,587,812.67, 2,381,715.36 and 689,137.92

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Solution

The fourth proportional to 1,587,812.67, 2,381,715.36 and 689,137.92 is: 1,033,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,812.67 : 2,381,715.36 = 689,137.92 : x
  2. Step 2: Convert to fraction form
    1,587,812.67/2,381,715.36 = 689,137.92/x
  3. Step 3: Cross multiply
    1,587,812.67x = 2,381,715.36 × 689,137.92
  4. Step 4: Simplify right side
    1,587,812.67x = 1,641,330,369,222.45
  5. Step 5: Solve for x
    x = 1,641,330,369,222.45/1,587,812.67
  6. Step 6: Final answer
    x = 1,033,705.30

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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.