Home / 1,105,235.45-1,657,758.20-672,840.68

Finding the Fourth Proportional to 1,105,235.45, 1,657,758.20 and 672,840.68

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Solution

The fourth proportional to 1,105,235.45, 1,657,758.20 and 672,840.68 is: 1,009,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,235.45 : 1,657,758.20 = 672,840.68 : x
  2. Step 2: Convert to fraction form
    1,105,235.45/1,657,758.20 = 672,840.68/x
  3. Step 3: Cross multiply
    1,105,235.45x = 1,657,758.20 × 672,840.68
  4. Step 4: Simplify right side
    1,105,235.45x = 1,115,407,146,695.31
  5. Step 5: Solve for x
    x = 1,115,407,146,695.31/1,105,235.45
  6. Step 6: Final answer
    x = 1,009,203.20

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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.