Home / 676,737.45-1,013,998.77-409,688.55

Finding the Fourth Proportional to 676,737.45, 1,013,998.77 and 409,688.55

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Solution

The fourth proportional to 676,737.45, 1,013,998.77 and 409,688.55 is: 613,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,737.45 : 1,013,998.77 = 409,688.55 : x
  2. Step 2: Convert to fraction form
    676,737.45/1,013,998.77 = 409,688.55/x
  3. Step 3: Cross multiply
    676,737.45x = 1,013,998.77 × 409,688.55
  4. Step 4: Simplify right side
    676,737.45x = 415,423,685,783.08
  5. Step 5: Solve for x
    x = 415,423,685,783.08/676,737.45
  6. Step 6: Final answer
    x = 613,862.42

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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.