Home / 817,680.12-1,226,075.04-285,057.96

Finding the Fourth Proportional to 817,680.12, 1,226,075.04 and 285,057.96

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Solution

The fourth proportional to 817,680.12, 1,226,075.04 and 285,057.96 is: 427,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,680.12 : 1,226,075.04 = 285,057.96 : x
  2. Step 2: Convert to fraction form
    817,680.12/1,226,075.04 = 285,057.96/x
  3. Step 3: Cross multiply
    817,680.12x = 1,226,075.04 × 285,057.96
  4. Step 4: Simplify right side
    817,680.12x = 349,502,449,709.32
  5. Step 5: Solve for x
    x = 349,502,449,709.32/817,680.12
  6. Step 6: Final answer
    x = 427,431.76

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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.