Home / 1,202,972.64-1,660,038.80-686,706.03

Finding the Fourth Proportional to 1,202,972.64, 1,660,038.80 and 686,706.03

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Solution

The fourth proportional to 1,202,972.64, 1,660,038.80 and 686,706.03 is: 947,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,972.64 : 1,660,038.80 = 686,706.03 : x
  2. Step 2: Convert to fraction form
    1,202,972.64/1,660,038.80 = 686,706.03/x
  3. Step 3: Cross multiply
    1,202,972.64x = 1,660,038.80 × 686,706.03
  4. Step 4: Simplify right side
    1,202,972.64x = 1,139,958,650,560.43
  5. Step 5: Solve for x
    x = 1,139,958,650,560.43/1,202,972.64
  6. Step 6: Final answer
    x = 947,618.10

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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.