Home / 831,796.70-1,247,695.05-458,548.70

Finding the Fourth Proportional to 831,796.70, 1,247,695.05 and 458,548.70

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Solution

The fourth proportional to 831,796.70, 1,247,695.05 and 458,548.70 is: 687,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,796.70 : 1,247,695.05 = 458,548.70 : x
  2. Step 2: Convert to fraction form
    831,796.70/1,247,695.05 = 458,548.70/x
  3. Step 3: Cross multiply
    831,796.70x = 1,247,695.05 × 458,548.70
  4. Step 4: Simplify right side
    831,796.70x = 572,128,943,173.94
  5. Step 5: Solve for x
    x = 572,128,943,173.94/831,796.70
  6. Step 6: Final answer
    x = 687,823.05

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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.