Home / 1,500,768.87-2,071,060.59-812,440.21

Finding the Fourth Proportional to 1,500,768.87, 2,071,060.59 and 812,440.21

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Solution

The fourth proportional to 1,500,768.87, 2,071,060.59 and 812,440.21 is: 1,121,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,768.87 : 2,071,060.59 = 812,440.21 : x
  2. Step 2: Convert to fraction form
    1,500,768.87/2,071,060.59 = 812,440.21/x
  3. Step 3: Cross multiply
    1,500,768.87x = 2,071,060.59 × 812,440.21
  4. Step 4: Simplify right side
    1,500,768.87x = 1,682,612,900,662.32
  5. Step 5: Solve for x
    x = 1,682,612,900,662.32/1,500,768.87
  6. Step 6: Final answer
    x = 1,121,167.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.