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Finding the Fourth Proportional to 450,903, 622,265.70 and 249,699

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Solution

The fourth proportional to 450,903, 622,265.70 and 249,699 is: 344,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,903 : 622,265.70 = 249,699 : x
  2. Step 2: Convert to fraction form
    450,903/622,265.70 = 249,699/x
  3. Step 3: Cross multiply
    450,903x = 622,265.70 × 249,699
  4. Step 4: Simplify right side
    450,903x = 155,379,123,024.30
  5. Step 5: Solve for x
    x = 155,379,123,024.30/450,903
  6. Step 6: Final answer
    x = 344,595.45

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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.