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Finding the Fourth Proportional to 990,223.41, 1,366,530.03 and 603,057

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Solution

The fourth proportional to 990,223.41, 1,366,530.03 and 603,057 is: 832,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,223.41 : 1,366,530.03 = 603,057 : x
  2. Step 2: Convert to fraction form
    990,223.41/1,366,530.03 = 603,057/x
  3. Step 3: Cross multiply
    990,223.41x = 1,366,530.03 × 603,057
  4. Step 4: Simplify right side
    990,223.41x = 824,095,500,301.71
  5. Step 5: Solve for x
    x = 824,095,500,301.71/990,223.41
  6. Step 6: Final answer
    x = 832,231.89

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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.