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Finding the Fourth Proportional to 909,801.51, 1,363,354.43 and 369,400.64

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Solution

The fourth proportional to 909,801.51, 1,363,354.43 and 369,400.64 is: 553,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,801.51 : 1,363,354.43 = 369,400.64 : x
  2. Step 2: Convert to fraction form
    909,801.51/1,363,354.43 = 369,400.64/x
  3. Step 3: Cross multiply
    909,801.51x = 1,363,354.43 × 369,400.64
  4. Step 4: Simplify right side
    909,801.51x = 503,623,998,988.84
  5. Step 5: Solve for x
    x = 503,623,998,988.84/909,801.51
  6. Step 6: Final answer
    x = 553,553.71

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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.