Home / 817,060.40-1,224,278.40-769,821.20

Finding the Fourth Proportional to 817,060.40, 1,224,278.40 and 769,821.20

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Solution

The fourth proportional to 817,060.40, 1,224,278.40 and 769,821.20 is: 1,153,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,060.40 : 1,224,278.40 = 769,821.20 : x
  2. Step 2: Convert to fraction form
    817,060.40/1,224,278.40 = 769,821.20/x
  3. Step 3: Cross multiply
    817,060.40x = 1,224,278.40 × 769,821.20
  4. Step 4: Simplify right side
    817,060.40x = 942,475,467,022.08
  5. Step 5: Solve for x
    x = 942,475,467,022.08/817,060.40
  6. Step 6: Final answer
    x = 1,153,495.47

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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.