Home / 821,006.40-1,230,926.40-371,942.40

Finding the Fourth Proportional to 821,006.40, 1,230,926.40 and 371,942.40

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Solution

The fourth proportional to 821,006.40, 1,230,926.40 and 371,942.40 is: 557,649.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,006.40 : 1,230,926.40 = 371,942.40 : x
  2. Step 2: Convert to fraction form
    821,006.40/1,230,926.40 = 371,942.40/x
  3. Step 3: Cross multiply
    821,006.40x = 1,230,926.40 × 371,942.40
  4. Step 4: Simplify right side
    821,006.40x = 457,833,719,439.36
  5. Step 5: Solve for x
    x = 457,833,719,439.36/821,006.40
  6. Step 6: Final answer
    x = 557,649.39

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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.