Home / 1,678,819.72-2,316,771.54-914,873.40

Finding the Fourth Proportional to 1,678,819.72, 2,316,771.54 and 914,873.40

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Solution

The fourth proportional to 1,678,819.72, 2,316,771.54 and 914,873.40 is: 1,262,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,819.72 : 2,316,771.54 = 914,873.40 : x
  2. Step 2: Convert to fraction form
    1,678,819.72/2,316,771.54 = 914,873.40/x
  3. Step 3: Cross multiply
    1,678,819.72x = 2,316,771.54 × 914,873.40
  4. Step 4: Simplify right side
    1,678,819.72x = 2,119,552,655,823.04
  5. Step 5: Solve for x
    x = 2,119,552,655,823.04/1,678,819.72
  6. Step 6: Final answer
    x = 1,262,525.47

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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.