Home / 810,393.57-1,118,410.47-447,888.20

Finding the Fourth Proportional to 810,393.57, 1,118,410.47 and 447,888.20

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Solution

The fourth proportional to 810,393.57, 1,118,410.47 and 447,888.20 is: 618,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,393.57 : 1,118,410.47 = 447,888.20 : x
  2. Step 2: Convert to fraction form
    810,393.57/1,118,410.47 = 447,888.20/x
  3. Step 3: Cross multiply
    810,393.57x = 1,118,410.47 × 447,888.20
  4. Step 4: Simplify right side
    810,393.57x = 500,922,846,677.40
  5. Step 5: Solve for x
    x = 500,922,846,677.40/810,393.57
  6. Step 6: Final answer
    x = 618,122.93

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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.