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Finding the Fourth Proportional to 556,622.46, 768,139.29 and 301,973.64

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Solution

The fourth proportional to 556,622.46, 768,139.29 and 301,973.64 is: 416,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,622.46 : 768,139.29 = 301,973.64 : x
  2. Step 2: Convert to fraction form
    556,622.46/768,139.29 = 301,973.64/x
  3. Step 3: Cross multiply
    556,622.46x = 768,139.29 × 301,973.64
  4. Step 4: Simplify right side
    556,622.46x = 231,957,817,428.32
  5. Step 5: Solve for x
    x = 231,957,817,428.32/556,622.46
  6. Step 6: Final answer
    x = 416,723.78

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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.