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Finding the Fourth Proportional to 622,817.20, 859,487.72 and 336,337.28

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Solution

The fourth proportional to 622,817.20, 859,487.72 and 336,337.28 is: 464,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,817.20 : 859,487.72 = 336,337.28 : x
  2. Step 2: Convert to fraction form
    622,817.20/859,487.72 = 336,337.28/x
  3. Step 3: Cross multiply
    622,817.20x = 859,487.72 × 336,337.28
  4. Step 4: Simplify right side
    622,817.20x = 289,077,761,938.20
  5. Step 5: Solve for x
    x = 289,077,761,938.20/622,817.20
  6. Step 6: Final answer
    x = 464,145.44

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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.