Home / 1,110,383.42-1,665,588.80-390,746.61

Finding the Fourth Proportional to 1,110,383.42, 1,665,588.80 and 390,746.61

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Solution

The fourth proportional to 1,110,383.42, 1,665,588.80 and 390,746.61 is: 586,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,383.42 : 1,665,588.80 = 390,746.61 : x
  2. Step 2: Convert to fraction form
    1,110,383.42/1,665,588.80 = 390,746.61/x
  3. Step 3: Cross multiply
    1,110,383.42x = 1,665,588.80 × 390,746.61
  4. Step 4: Simplify right side
    1,110,383.42x = 650,823,178,230.84
  5. Step 5: Solve for x
    x = 650,823,178,230.84/1,110,383.42
  6. Step 6: Final answer
    x = 586,124.73

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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.