Home / 747,443.20-1,121,164.80-742,777.60

Finding the Fourth Proportional to 747,443.20, 1,121,164.80 and 742,777.60

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Solution

The fourth proportional to 747,443.20, 1,121,164.80 and 742,777.60 is: 1,114,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,443.20 : 1,121,164.80 = 742,777.60 : x
  2. Step 2: Convert to fraction form
    747,443.20/1,121,164.80 = 742,777.60/x
  3. Step 3: Cross multiply
    747,443.20x = 1,121,164.80 × 742,777.60
  4. Step 4: Simplify right side
    747,443.20x = 832,776,099,348.48
  5. Step 5: Solve for x
    x = 832,776,099,348.48/747,443.20
  6. Step 6: Final answer
    x = 1,114,166.40

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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.