Home / 1,812,172.40-2,720,357.40-972,364.40

Finding the Fourth Proportional to 1,812,172.40, 2,720,357.40 and 972,364.40

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Solution

The fourth proportional to 1,812,172.40, 2,720,357.40 and 972,364.40 is: 1,459,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,172.40 : 2,720,357.40 = 972,364.40 : x
  2. Step 2: Convert to fraction form
    1,812,172.40/2,720,357.40 = 972,364.40/x
  3. Step 3: Cross multiply
    1,812,172.40x = 2,720,357.40 × 972,364.40
  4. Step 4: Simplify right side
    1,812,172.40x = 2,645,178,691,036.56
  5. Step 5: Solve for x
    x = 2,645,178,691,036.56/1,812,172.40
  6. Step 6: Final answer
    x = 1,459,672.76

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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.