Home / 910,073.40-1,365,110.10-278,905.20

Finding the Fourth Proportional to 910,073.40, 1,365,110.10 and 278,905.20

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Solution

The fourth proportional to 910,073.40, 1,365,110.10 and 278,905.20 is: 418,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,073.40 : 1,365,110.10 = 278,905.20 : x
  2. Step 2: Convert to fraction form
    910,073.40/1,365,110.10 = 278,905.20/x
  3. Step 3: Cross multiply
    910,073.40x = 1,365,110.10 × 278,905.20
  4. Step 4: Simplify right side
    910,073.40x = 380,736,305,462.52
  5. Step 5: Solve for x
    x = 380,736,305,462.52/910,073.40
  6. Step 6: Final answer
    x = 418,357.80

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Double scale
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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.