Home / 817,710.64-1,226,479.67-218,732.24

Finding the Fourth Proportional to 817,710.64, 1,226,479.67 and 218,732.24

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Solution

The fourth proportional to 817,710.64, 1,226,479.67 and 218,732.24 is: 328,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,710.64 : 1,226,479.67 = 218,732.24 : x
  2. Step 2: Convert to fraction form
    817,710.64/1,226,479.67 = 218,732.24/x
  3. Step 3: Cross multiply
    817,710.64x = 1,226,479.67 × 218,732.24
  4. Step 4: Simplify right side
    817,710.64x = 268,270,645,533.56
  5. Step 5: Solve for x
    x = 268,270,645,533.56/817,710.64
  6. Step 6: Final answer
    x = 328,075.28

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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.