Home / 2,172,985.96-2,998,677.90-1,206,127.84

Finding the Fourth Proportional to 2,172,985.96, 2,998,677.90 and 1,206,127.84

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Solution

The fourth proportional to 2,172,985.96, 2,998,677.90 and 1,206,127.84 is: 1,664,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,985.96 : 2,998,677.90 = 1,206,127.84 : x
  2. Step 2: Convert to fraction form
    2,172,985.96/2,998,677.90 = 1,206,127.84/x
  3. Step 3: Cross multiply
    2,172,985.96x = 2,998,677.90 × 1,206,127.84
  4. Step 4: Simplify right side
    2,172,985.96x = 3,616,788,898,382.74
  5. Step 5: Solve for x
    x = 3,616,788,898,382.74/2,172,985.96
  6. Step 6: Final answer
    x = 1,664,432.70

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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.