Home / 910,013.40-1,365,020.10-278,845.20

Finding the Fourth Proportional to 910,013.40, 1,365,020.10 and 278,845.20

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Solution

The fourth proportional to 910,013.40, 1,365,020.10 and 278,845.20 is: 418,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,013.40 : 1,365,020.10 = 278,845.20 : x
  2. Step 2: Convert to fraction form
    910,013.40/1,365,020.10 = 278,845.20/x
  3. Step 3: Cross multiply
    910,013.40x = 1,365,020.10 × 278,845.20
  4. Step 4: Simplify right side
    910,013.40x = 380,629,302,788.52
  5. Step 5: Solve for x
    x = 380,629,302,788.52/910,013.40
  6. Step 6: Final answer
    x = 418,267.80

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1.5x scale

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.