Home / 873,107.10-1,309,660.65-282,131.10

Finding the Fourth Proportional to 873,107.10, 1,309,660.65 and 282,131.10

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Solution

The fourth proportional to 873,107.10, 1,309,660.65 and 282,131.10 is: 423,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,107.10 : 1,309,660.65 = 282,131.10 : x
  2. Step 2: Convert to fraction form
    873,107.10/1,309,660.65 = 282,131.10/x
  3. Step 3: Cross multiply
    873,107.10x = 1,309,660.65 × 282,131.10
  4. Step 4: Simplify right side
    873,107.10x = 369,495,999,811.22
  5. Step 5: Solve for x
    x = 369,495,999,811.22/873,107.10
  6. Step 6: Final answer
    x = 423,196.65

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Double scale
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Similar ratio
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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.