Home / 1,247,816.60-1,868,960.10-966,421.40

Finding the Fourth Proportional to 1,247,816.60, 1,868,960.10 and 966,421.40

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Solution

The fourth proportional to 1,247,816.60, 1,868,960.10 and 966,421.40 is: 1,447,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,816.60 : 1,868,960.10 = 966,421.40 : x
  2. Step 2: Convert to fraction form
    1,247,816.60/1,868,960.10 = 966,421.40/x
  3. Step 3: Cross multiply
    1,247,816.60x = 1,868,960.10 × 966,421.40
  4. Step 4: Simplify right side
    1,247,816.60x = 1,806,203,036,386.14
  5. Step 5: Solve for x
    x = 1,806,203,036,386.14/1,247,816.60
  6. Step 6: Final answer
    x = 1,447,490.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.