Home / 1,272,877.40-1,756,633.96-789,598.28

Finding the Fourth Proportional to 1,272,877.40, 1,756,633.96 and 789,598.28

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Solution

The fourth proportional to 1,272,877.40, 1,756,633.96 and 789,598.28 is: 1,089,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,877.40 : 1,756,633.96 = 789,598.28 : x
  2. Step 2: Convert to fraction form
    1,272,877.40/1,756,633.96 = 789,598.28/x
  3. Step 3: Cross multiply
    1,272,877.40x = 1,756,633.96 × 789,598.28
  4. Step 4: Simplify right side
    1,272,877.40x = 1,387,035,153,405.59
  5. Step 5: Solve for x
    x = 1,387,035,153,405.59/1,272,877.40
  6. Step 6: Final answer
    x = 1,089,684.80

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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.