Home / 689,454.84-1,034,186.86-240,184.20

Finding the Fourth Proportional to 689,454.84, 1,034,186.86 and 240,184.20

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Solution

The fourth proportional to 689,454.84, 1,034,186.86 and 240,184.20 is: 360,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,454.84 : 1,034,186.86 = 240,184.20 : x
  2. Step 2: Convert to fraction form
    689,454.84/1,034,186.86 = 240,184.20/x
  3. Step 3: Cross multiply
    689,454.84x = 1,034,186.86 × 240,184.20
  4. Step 4: Simplify right side
    689,454.84x = 248,395,343,619.61
  5. Step 5: Solve for x
    x = 248,395,343,619.61/689,454.84
  6. Step 6: Final answer
    x = 360,277.90

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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.