Home / 786,228.83-1,084,654.28-499,595.14

Finding the Fourth Proportional to 786,228.83, 1,084,654.28 and 499,595.14

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Solution

The fourth proportional to 786,228.83, 1,084,654.28 and 499,595.14 is: 689,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,228.83 : 1,084,654.28 = 499,595.14 : x
  2. Step 2: Convert to fraction form
    786,228.83/1,084,654.28 = 499,595.14/x
  3. Step 3: Cross multiply
    786,228.83x = 1,084,654.28 × 499,595.14
  4. Step 4: Simplify right side
    786,228.83x = 541,887,998,946.95
  5. Step 5: Solve for x
    x = 541,887,998,946.95/786,228.83
  6. Step 6: Final answer
    x = 689,224.28

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Double scale
Find fourth proportional to 786,229.83, 1,084,655.65 and 499,596.14
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.