Home / 831,531.60-1,247,297.40-299,134.80

Finding the Fourth Proportional to 831,531.60, 1,247,297.40 and 299,134.80

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Solution

The fourth proportional to 831,531.60, 1,247,297.40 and 299,134.80 is: 448,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,531.60 : 1,247,297.40 = 299,134.80 : x
  2. Step 2: Convert to fraction form
    831,531.60/1,247,297.40 = 299,134.80/x
  3. Step 3: Cross multiply
    831,531.60x = 1,247,297.40 × 299,134.80
  4. Step 4: Simplify right side
    831,531.60x = 373,110,058,289.52
  5. Step 5: Solve for x
    x = 373,110,058,289.52/831,531.60
  6. Step 6: Final answer
    x = 448,702.20

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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.