Home / 740,863.20-1,111,294.80-208,401.60

Finding the Fourth Proportional to 740,863.20, 1,111,294.80 and 208,401.60

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Solution

The fourth proportional to 740,863.20, 1,111,294.80 and 208,401.60 is: 312,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,863.20 : 1,111,294.80 = 208,401.60 : x
  2. Step 2: Convert to fraction form
    740,863.20/1,111,294.80 = 208,401.60/x
  3. Step 3: Cross multiply
    740,863.20x = 1,111,294.80 × 208,401.60
  4. Step 4: Simplify right side
    740,863.20x = 231,595,614,391.68
  5. Step 5: Solve for x
    x = 231,595,614,391.68/740,863.20
  6. Step 6: Final answer
    x = 312,602.40

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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.