Home / 989,469.78-1,484,266.20-358,389.06

Finding the Fourth Proportional to 989,469.78, 1,484,266.20 and 358,389.06

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Solution

The fourth proportional to 989,469.78, 1,484,266.20 and 358,389.06 is: 537,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,469.78 : 1,484,266.20 = 358,389.06 : x
  2. Step 2: Convert to fraction form
    989,469.78/1,484,266.20 = 358,389.06/x
  3. Step 3: Cross multiply
    989,469.78x = 1,484,266.20 × 358,389.06
  4. Step 4: Simplify right side
    989,469.78x = 531,944,768,207.77
  5. Step 5: Solve for x
    x = 531,944,768,207.77/989,469.78
  6. Step 6: Final answer
    x = 537,605.88

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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.