Home / 1,186,115.86-1,636,957.11-676,894.78

Finding the Fourth Proportional to 1,186,115.86, 1,636,957.11 and 676,894.78

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Solution

The fourth proportional to 1,186,115.86, 1,636,957.11 and 676,894.78 is: 934,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,115.86 : 1,636,957.11 = 676,894.78 : x
  2. Step 2: Convert to fraction form
    1,186,115.86/1,636,957.11 = 676,894.78/x
  3. Step 3: Cross multiply
    1,186,115.86x = 1,636,957.11 × 676,894.78
  4. Step 4: Simplify right side
    1,186,115.86x = 1,108,047,722,842.89
  5. Step 5: Solve for x
    x = 1,108,047,722,842.89/1,186,115.86
  6. Step 6: Final answer
    x = 934,181.69

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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.