Home / 1,259,684.75-1,738,356.10-686,729.02

Finding the Fourth Proportional to 1,259,684.75, 1,738,356.10 and 686,729.02

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Solution

The fourth proportional to 1,259,684.75, 1,738,356.10 and 686,729.02 is: 947,681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,684.75 : 1,738,356.10 = 686,729.02 : x
  2. Step 2: Convert to fraction form
    1,259,684.75/1,738,356.10 = 686,729.02/x
  3. Step 3: Cross multiply
    1,259,684.75x = 1,738,356.10 × 686,729.02
  4. Step 4: Simplify right side
    1,259,684.75x = 1,193,779,580,964.02
  5. Step 5: Solve for x
    x = 1,193,779,580,964.02/1,259,684.75
  6. Step 6: Final answer
    x = 947,681.22

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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.