Home / 856,402.72-1,283,799.41-287,384.75

Finding the Fourth Proportional to 856,402.72, 1,283,799.41 and 287,384.75

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Solution

The fourth proportional to 856,402.72, 1,283,799.41 and 287,384.75 is: 430,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,402.72 : 1,283,799.41 = 287,384.75 : x
  2. Step 2: Convert to fraction form
    856,402.72/1,283,799.41 = 287,384.75/x
  3. Step 3: Cross multiply
    856,402.72x = 1,283,799.41 × 287,384.75
  4. Step 4: Simplify right side
    856,402.72x = 368,944,374,265.57
  5. Step 5: Solve for x
    x = 368,944,374,265.57/856,402.72
  6. Step 6: Final answer
    x = 430,807.10

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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.