Home / 990,854.70-1,367,328.51-538,144.62

Finding the Fourth Proportional to 990,854.70, 1,367,328.51 and 538,144.62

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Solution

The fourth proportional to 990,854.70, 1,367,328.51 and 538,144.62 is: 742,611.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,854.70 : 1,367,328.51 = 538,144.62 : x
  2. Step 2: Convert to fraction form
    990,854.70/1,367,328.51 = 538,144.62/x
  3. Step 3: Cross multiply
    990,854.70x = 1,367,328.51 × 538,144.62
  4. Step 4: Simplify right side
    990,854.70x = 735,820,481,429.12
  5. Step 5: Solve for x
    x = 735,820,481,429.12/990,854.70
  6. Step 6: Final answer
    x = 742,611.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.