Home / 1,287,631.06-1,931,426.92-435,301.42

Finding the Fourth Proportional to 1,287,631.06, 1,931,426.92 and 435,301.42

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Solution

The fourth proportional to 1,287,631.06, 1,931,426.92 and 435,301.42 is: 652,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,631.06 : 1,931,426.92 = 435,301.42 : x
  2. Step 2: Convert to fraction form
    1,287,631.06/1,931,426.92 = 435,301.42/x
  3. Step 3: Cross multiply
    1,287,631.06x = 1,931,426.92 × 435,301.42
  4. Step 4: Simplify right side
    1,287,631.06x = 840,752,880,902.23
  5. Step 5: Solve for x
    x = 840,752,880,902.23/1,287,631.06
  6. Step 6: Final answer
    x = 652,945.48

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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.