Home / 1,200,017.70-1,656,441.36-690,922.98

Finding the Fourth Proportional to 1,200,017.70, 1,656,441.36 and 690,922.98

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Solution

The fourth proportional to 1,200,017.70, 1,656,441.36 and 690,922.98 is: 953,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,017.70 : 1,656,441.36 = 690,922.98 : x
  2. Step 2: Convert to fraction form
    1,200,017.70/1,656,441.36 = 690,922.98/x
  3. Step 3: Cross multiply
    1,200,017.70x = 1,656,441.36 × 690,922.98
  4. Step 4: Simplify right side
    1,200,017.70x = 1,144,473,400,646.45
  5. Step 5: Solve for x
    x = 1,144,473,400,646.45/1,200,017.70
  6. Step 6: Final answer
    x = 953,713.77

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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.