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Finding the Fourth Proportional to 889,712.10, 1,334,568.15 and 883,807.20

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Solution

The fourth proportional to 889,712.10, 1,334,568.15 and 883,807.20 is: 1,325,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,712.10 : 1,334,568.15 = 883,807.20 : x
  2. Step 2: Convert to fraction form
    889,712.10/1,334,568.15 = 883,807.20/x
  3. Step 3: Cross multiply
    889,712.10x = 1,334,568.15 × 883,807.20
  4. Step 4: Simplify right side
    889,712.10x = 1,179,500,939,860.68
  5. Step 5: Solve for x
    x = 1,179,500,939,860.68/889,712.10
  6. Step 6: Final answer
    x = 1,325,710.80

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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.