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Finding the Fourth Proportional to 901,699, 1,244,383.50 and 499,291

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Solution

The fourth proportional to 901,699, 1,244,383.50 and 499,291 is: 689,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,699 : 1,244,383.50 = 499,291 : x
  2. Step 2: Convert to fraction form
    901,699/1,244,383.50 = 499,291/x
  3. Step 3: Cross multiply
    901,699x = 1,244,383.50 × 499,291
  4. Step 4: Simplify right side
    901,699x = 621,309,482,098.50
  5. Step 5: Solve for x
    x = 621,309,482,098.50/901,699
  6. Step 6: Final answer
    x = 689,043.11

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1.5x scale

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.