Home / 813,862.40-1,220,793.60-371,494.40

Finding the Fourth Proportional to 813,862.40, 1,220,793.60 and 371,494.40

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Solution

The fourth proportional to 813,862.40, 1,220,793.60 and 371,494.40 is: 557,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,862.40 : 1,220,793.60 = 371,494.40 : x
  2. Step 2: Convert to fraction form
    813,862.40/1,220,793.60 = 371,494.40/x
  3. Step 3: Cross multiply
    813,862.40x = 1,220,793.60 × 371,494.40
  4. Step 4: Simplify right side
    813,862.40x = 453,517,985,955.84
  5. Step 5: Solve for x
    x = 453,517,985,955.84/813,862.40
  6. Step 6: Final answer
    x = 557,241.60

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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.