Home / 786,155.04-1,084,932.36-442,099.20

Finding the Fourth Proportional to 786,155.04, 1,084,932.36 and 442,099.20

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Solution

The fourth proportional to 786,155.04, 1,084,932.36 and 442,099.20 is: 610,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,155.04 : 1,084,932.36 = 442,099.20 : x
  2. Step 2: Convert to fraction form
    786,155.04/1,084,932.36 = 442,099.20/x
  3. Step 3: Cross multiply
    786,155.04x = 1,084,932.36 × 442,099.20
  4. Step 4: Simplify right side
    786,155.04x = 479,647,728,410.11
  5. Step 5: Solve for x
    x = 479,647,728,410.11/786,155.04
  6. Step 6: Final answer
    x = 610,118.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.