Home / 687,477.00-948,703.99-381,535.61

Finding the Fourth Proportional to 687,477.00, 948,703.99 and 381,535.61

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Solution

The fourth proportional to 687,477.00, 948,703.99 and 381,535.61 is: 526,511.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,477.00 : 948,703.99 = 381,535.61 : x
  2. Step 2: Convert to fraction form
    687,477.00/948,703.99 = 381,535.61/x
  3. Step 3: Cross multiply
    687,477.00x = 948,703.99 × 381,535.61
  4. Step 4: Simplify right side
    687,477.00x = 361,964,354,815.50
  5. Step 5: Solve for x
    x = 361,964,354,815.50/687,477.00
  6. Step 6: Final answer
    x = 526,511.22

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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.