Home / 831,390.40-1,246,531.84-298,842.24

Finding the Fourth Proportional to 831,390.40, 1,246,531.84 and 298,842.24

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Solution

The fourth proportional to 831,390.40, 1,246,531.84 and 298,842.24 is: 448,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,390.40 : 1,246,531.84 = 298,842.24 : x
  2. Step 2: Convert to fraction form
    831,390.40/1,246,531.84 = 298,842.24/x
  3. Step 3: Cross multiply
    831,390.40x = 1,246,531.84 × 298,842.24
  4. Step 4: Simplify right side
    831,390.40x = 372,516,367,296.92
  5. Step 5: Solve for x
    x = 372,516,367,296.92/831,390.40
  6. Step 6: Final answer
    x = 448,064.31

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Double scale
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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.