Home / 910,890.30-1,366,499.48-378,465.15

Finding the Fourth Proportional to 910,890.30, 1,366,499.48 and 378,465.15

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Solution

The fourth proportional to 910,890.30, 1,366,499.48 and 378,465.15 is: 567,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,890.30 : 1,366,499.48 = 378,465.15 : x
  2. Step 2: Convert to fraction form
    910,890.30/1,366,499.48 = 378,465.15/x
  3. Step 3: Cross multiply
    910,890.30x = 1,366,499.48 × 378,465.15
  4. Step 4: Simplify right side
    910,890.30x = 517,172,428,780.80
  5. Step 5: Solve for x
    x = 517,172,428,780.80/910,890.30
  6. Step 6: Final answer
    x = 567,765.88

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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.