Home / 1,272,875.40-1,756,631.20-789,596.28

Finding the Fourth Proportional to 1,272,875.40, 1,756,631.20 and 789,596.28

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Solution

The fourth proportional to 1,272,875.40, 1,756,631.20 and 789,596.28 is: 1,089,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,875.40 : 1,756,631.20 = 789,596.28 : x
  2. Step 2: Convert to fraction form
    1,272,875.40/1,756,631.20 = 789,596.28/x
  3. Step 3: Cross multiply
    1,272,875.40x = 1,756,631.20 × 789,596.28
  4. Step 4: Simplify right side
    1,272,875.40x = 1,387,029,460,851.94
  5. Step 5: Solve for x
    x = 1,387,029,460,851.94/1,272,875.40
  6. Step 6: Final answer
    x = 1,089,682.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.