Home / 910,029.40-1,365,044.10-278,861.20

Finding the Fourth Proportional to 910,029.40, 1,365,044.10 and 278,861.20

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Solution

The fourth proportional to 910,029.40, 1,365,044.10 and 278,861.20 is: 418,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,029.40 : 1,365,044.10 = 278,861.20 : x
  2. Step 2: Convert to fraction form
    910,029.40/1,365,044.10 = 278,861.20/x
  3. Step 3: Cross multiply
    910,029.40x = 1,365,044.10 × 278,861.20
  4. Step 4: Simplify right side
    910,029.40x = 380,657,835,778.92
  5. Step 5: Solve for x
    x = 380,657,835,778.92/910,029.40
  6. Step 6: Final answer
    x = 418,291.80

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Similar ratio
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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.