Home / 1,918,514.70-2,878,808.85-853,721.10

Finding the Fourth Proportional to 1,918,514.70, 2,878,808.85 and 853,721.10

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Solution

The fourth proportional to 1,918,514.70, 2,878,808.85 and 853,721.10 is: 1,281,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,514.70 : 2,878,808.85 = 853,721.10 : x
  2. Step 2: Convert to fraction form
    1,918,514.70/2,878,808.85 = 853,721.10/x
  3. Step 3: Cross multiply
    1,918,514.70x = 2,878,808.85 × 853,721.10
  4. Step 4: Simplify right side
    1,918,514.70x = 2,457,699,858,111.74
  5. Step 5: Solve for x
    x = 2,457,699,858,111.74/1,918,514.70
  6. Step 6: Final answer
    x = 1,281,043.02

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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.