Home / 2,925,772.80-4,388,659.20-931,430.40

Finding the Fourth Proportional to 2,925,772.80, 4,388,659.20 and 931,430.40

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Solution

The fourth proportional to 2,925,772.80, 4,388,659.20 and 931,430.40 is: 1,397,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925,772.80 : 4,388,659.20 = 931,430.40 : x
  2. Step 2: Convert to fraction form
    2,925,772.80/4,388,659.20 = 931,430.40/x
  3. Step 3: Cross multiply
    2,925,772.80x = 4,388,659.20 × 931,430.40
  4. Step 4: Simplify right side
    2,925,772.80x = 4,087,730,594,119.68
  5. Step 5: Solve for x
    x = 4,087,730,594,119.68/2,925,772.80
  6. Step 6: Final answer
    x = 1,397,145.60

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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.