Home / 1,202,972.15-1,660,038.11-686,705.53

Finding the Fourth Proportional to 1,202,972.15, 1,660,038.11 and 686,705.53

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Solution

The fourth proportional to 1,202,972.15, 1,660,038.11 and 686,705.53 is: 947,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,972.15 : 1,660,038.11 = 686,705.53 : x
  2. Step 2: Convert to fraction form
    1,202,972.15/1,660,038.11 = 686,705.53/x
  3. Step 3: Cross multiply
    1,202,972.15x = 1,660,038.11 × 686,705.53
  4. Step 4: Simplify right side
    1,202,972.15x = 1,139,957,350,147.75
  5. Step 5: Solve for x
    x = 1,139,957,350,147.75/1,202,972.15
  6. Step 6: Final answer
    x = 947,617.41

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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.