Home / 989,339.13-1,484,066.07-279,307.71

Finding the Fourth Proportional to 989,339.13, 1,484,066.07 and 279,307.71

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Solution

The fourth proportional to 989,339.13, 1,484,066.07 and 279,307.71 is: 418,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,339.13 : 1,484,066.07 = 279,307.71 : x
  2. Step 2: Convert to fraction form
    989,339.13/1,484,066.07 = 279,307.71/x
  3. Step 3: Cross multiply
    989,339.13x = 1,484,066.07 × 279,307.71
  4. Step 4: Simplify right side
    989,339.13x = 414,511,095,500.40
  5. Step 5: Solve for x
    x = 414,511,095,500.40/989,339.13
  6. Step 6: Final answer
    x = 418,977.76

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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.