Home / 1,297,142.40-1,943,089.20-898,233.60

Finding the Fourth Proportional to 1,297,142.40, 1,943,089.20 and 898,233.60

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Solution

The fourth proportional to 1,297,142.40, 1,943,089.20 and 898,233.60 is: 1,345,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,142.40 : 1,943,089.20 = 898,233.60 : x
  2. Step 2: Convert to fraction form
    1,297,142.40/1,943,089.20 = 898,233.60/x
  3. Step 3: Cross multiply
    1,297,142.40x = 1,943,089.20 × 898,233.60
  4. Step 4: Simplify right side
    1,297,142.40x = 1,745,348,007,237.12
  5. Step 5: Solve for x
    x = 1,745,348,007,237.12/1,297,142.40
  6. Step 6: Final answer
    x = 1,345,533.08

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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.