Home / 786,010.58-1,179,264.96-280,560.36

Finding the Fourth Proportional to 786,010.58, 1,179,264.96 and 280,560.36

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Solution

The fourth proportional to 786,010.58, 1,179,264.96 and 280,560.36 is: 420,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,010.58 : 1,179,264.96 = 280,560.36 : x
  2. Step 2: Convert to fraction form
    786,010.58/1,179,264.96 = 280,560.36/x
  3. Step 3: Cross multiply
    786,010.58x = 1,179,264.96 × 280,560.36
  4. Step 4: Simplify right side
    786,010.58x = 330,855,001,712.99
  5. Step 5: Solve for x
    x = 330,855,001,712.99/786,010.58
  6. Step 6: Final answer
    x = 420,929.45

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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.