Home / 989,879.40-1,484,819.10-635,585.40

Finding the Fourth Proportional to 989,879.40, 1,484,819.10 and 635,585.40

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Solution

The fourth proportional to 989,879.40, 1,484,819.10 and 635,585.40 is: 953,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,879.40 : 1,484,819.10 = 635,585.40 : x
  2. Step 2: Convert to fraction form
    989,879.40/1,484,819.10 = 635,585.40/x
  3. Step 3: Cross multiply
    989,879.40x = 1,484,819.10 × 635,585.40
  4. Step 4: Simplify right side
    989,879.40x = 943,729,341,601.14
  5. Step 5: Solve for x
    x = 943,729,341,601.14/989,879.40
  6. Step 6: Final answer
    x = 953,378.10

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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.