Home / 1,812,148.90-2,720,322.15-972,340.90

Finding the Fourth Proportional to 1,812,148.90, 2,720,322.15 and 972,340.90

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Solution

The fourth proportional to 1,812,148.90, 2,720,322.15 and 972,340.90 is: 1,459,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,148.90 : 2,720,322.15 = 972,340.90 : x
  2. Step 2: Convert to fraction form
    1,812,148.90/2,720,322.15 = 972,340.90/x
  3. Step 3: Cross multiply
    1,812,148.90x = 2,720,322.15 × 972,340.90
  4. Step 4: Simplify right side
    1,812,148.90x = 2,645,080,487,620.94
  5. Step 5: Solve for x
    x = 2,645,080,487,620.94/1,812,148.90
  6. Step 6: Final answer
    x = 1,459,637.50

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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.