Home / 1,216,121.10-1,824,016.05-317,633.10

Finding the Fourth Proportional to 1,216,121.10, 1,824,016.05 and 317,633.10

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Solution

The fourth proportional to 1,216,121.10, 1,824,016.05 and 317,633.10 is: 476,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,121.10 : 1,824,016.05 = 317,633.10 : x
  2. Step 2: Convert to fraction form
    1,216,121.10/1,824,016.05 = 317,633.10/x
  3. Step 3: Cross multiply
    1,216,121.10x = 1,824,016.05 × 317,633.10
  4. Step 4: Simplify right side
    1,216,121.10x = 579,367,872,411.26
  5. Step 5: Solve for x
    x = 579,367,872,411.26/1,216,121.10
  6. Step 6: Final answer
    x = 476,406.40

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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.