Home / 1,100,671.93-1,651,171.92-390,640.51

Finding the Fourth Proportional to 1,100,671.93, 1,651,171.92 and 390,640.51

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Solution

The fourth proportional to 1,100,671.93, 1,651,171.92 and 390,640.51 is: 586,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,671.93 : 1,651,171.92 = 390,640.51 : x
  2. Step 2: Convert to fraction form
    1,100,671.93/1,651,171.92 = 390,640.51/x
  3. Step 3: Cross multiply
    1,100,671.93x = 1,651,171.92 × 390,640.51
  4. Step 4: Simplify right side
    1,100,671.93x = 645,014,630,717.42
  5. Step 5: Solve for x
    x = 645,014,630,717.42/1,100,671.93
  6. Step 6: Final answer
    x = 586,018.97

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1.5x scale

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.