Home / 1,328,165.60-1,989,872.40-807,893.60

Finding the Fourth Proportional to 1,328,165.60, 1,989,872.40 and 807,893.60

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Solution

The fourth proportional to 1,328,165.60, 1,989,872.40 and 807,893.60 is: 1,210,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,165.60 : 1,989,872.40 = 807,893.60 : x
  2. Step 2: Convert to fraction form
    1,328,165.60/1,989,872.40 = 807,893.60/x
  3. Step 3: Cross multiply
    1,328,165.60x = 1,989,872.40 × 807,893.60
  4. Step 4: Simplify right side
    1,328,165.60x = 1,607,605,176,776.64
  5. Step 5: Solve for x
    x = 1,607,605,176,776.64/1,328,165.60
  6. Step 6: Final answer
    x = 1,210,395.13

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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.