Home / 1,678,815.68-2,316,792.48-914,869.76

Finding the Fourth Proportional to 1,678,815.68, 2,316,792.48 and 914,869.76

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Solution

The fourth proportional to 1,678,815.68, 2,316,792.48 and 914,869.76 is: 1,262,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,815.68 : 2,316,792.48 = 914,869.76 : x
  2. Step 2: Convert to fraction form
    1,678,815.68/2,316,792.48 = 914,869.76/x
  3. Step 3: Cross multiply
    1,678,815.68x = 2,316,792.48 × 914,869.76
  4. Step 4: Simplify right side
    1,678,815.68x = 2,119,563,380,147.40
  5. Step 5: Solve for x
    x = 2,119,563,380,147.40/1,678,815.68
  6. Step 6: Final answer
    x = 1,262,534.90

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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.