Home / 1,143,422.80-1,713,905.40-433,176.40

Finding the Fourth Proportional to 1,143,422.80, 1,713,905.40 and 433,176.40

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Solution

The fourth proportional to 1,143,422.80, 1,713,905.40 and 433,176.40 is: 649,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,422.80 : 1,713,905.40 = 433,176.40 : x
  2. Step 2: Convert to fraction form
    1,143,422.80/1,713,905.40 = 433,176.40/x
  3. Step 3: Cross multiply
    1,143,422.80x = 1,713,905.40 × 433,176.40
  4. Step 4: Simplify right side
    1,143,422.80x = 742,423,371,112.56
  5. Step 5: Solve for x
    x = 742,423,371,112.56/1,143,422.80
  6. Step 6: Final answer
    x = 649,299.08

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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.