Home / 1,318,420.80-1,972,382.40-1,142,877.60

Finding the Fourth Proportional to 1,318,420.80, 1,972,382.40 and 1,142,877.60

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Solution

The fourth proportional to 1,318,420.80, 1,972,382.40 and 1,142,877.60 is: 1,709,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,420.80 : 1,972,382.40 = 1,142,877.60 : x
  2. Step 2: Convert to fraction form
    1,318,420.80/1,972,382.40 = 1,142,877.60/x
  3. Step 3: Cross multiply
    1,318,420.80x = 1,972,382.40 × 1,142,877.60
  4. Step 4: Simplify right side
    1,318,420.80x = 2,254,191,663,594.24
  5. Step 5: Solve for x
    x = 2,254,191,663,594.24/1,318,420.80
  6. Step 6: Final answer
    x = 1,709,766.46

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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.