Home / 918,113.76-1,376,246.83-378,763.43

Finding the Fourth Proportional to 918,113.76, 1,376,246.83 and 378,763.43

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Solution

The fourth proportional to 918,113.76, 1,376,246.83 and 378,763.43 is: 567,764.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,113.76 : 1,376,246.83 = 378,763.43 : x
  2. Step 2: Convert to fraction form
    918,113.76/1,376,246.83 = 378,763.43/x
  3. Step 3: Cross multiply
    918,113.76x = 1,376,246.83 × 378,763.43
  4. Step 4: Simplify right side
    918,113.76x = 521,271,961,674.19
  5. Step 5: Solve for x
    x = 521,271,961,674.19/918,113.76
  6. Step 6: Final answer
    x = 567,764.02

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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.