Home / 865,342.70-1,298,014.05-492,094.70

Finding the Fourth Proportional to 865,342.70, 1,298,014.05 and 492,094.70

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Solution

The fourth proportional to 865,342.70, 1,298,014.05 and 492,094.70 is: 738,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,342.70 : 1,298,014.05 = 492,094.70 : x
  2. Step 2: Convert to fraction form
    865,342.70/1,298,014.05 = 492,094.70/x
  3. Step 3: Cross multiply
    865,342.70x = 1,298,014.05 × 492,094.70
  4. Step 4: Simplify right side
    865,342.70x = 638,745,834,530.54
  5. Step 5: Solve for x
    x = 638,745,834,530.54/865,342.70
  6. Step 6: Final answer
    x = 738,142.05

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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.