Home / 1,312,825.20-1,968,049.80-913,657.20

Finding the Fourth Proportional to 1,312,825.20, 1,968,049.80 and 913,657.20

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Solution

The fourth proportional to 1,312,825.20, 1,968,049.80 and 913,657.20 is: 1,369,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,825.20 : 1,968,049.80 = 913,657.20 : x
  2. Step 2: Convert to fraction form
    1,312,825.20/1,968,049.80 = 913,657.20/x
  3. Step 3: Cross multiply
    1,312,825.20x = 1,968,049.80 × 913,657.20
  4. Step 4: Simplify right side
    1,312,825.20x = 1,798,122,869,728.56
  5. Step 5: Solve for x
    x = 1,798,122,869,728.56/1,312,825.20
  6. Step 6: Final answer
    x = 1,369,659.01

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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.