Home / 829,107.10-1,243,521.54-230,129.12

Finding the Fourth Proportional to 829,107.10, 1,243,521.54 and 230,129.12

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Solution

The fourth proportional to 829,107.10, 1,243,521.54 and 230,129.12 is: 345,155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,107.10 : 1,243,521.54 = 230,129.12 : x
  2. Step 2: Convert to fraction form
    829,107.10/1,243,521.54 = 230,129.12/x
  3. Step 3: Cross multiply
    829,107.10x = 1,243,521.54 × 230,129.12
  4. Step 4: Simplify right side
    829,107.10x = 286,170,517,701.25
  5. Step 5: Solve for x
    x = 286,170,517,701.25/829,107.10
  6. Step 6: Final answer
    x = 345,155.07

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Double scale
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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.