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Finding the Fourth Proportional to 560,967.82, 840,828.43 and 427,407.73

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Solution

The fourth proportional to 560,967.82, 840,828.43 and 427,407.73 is: 640,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,967.82 : 840,828.43 = 427,407.73 : x
  2. Step 2: Convert to fraction form
    560,967.82/840,828.43 = 427,407.73/x
  3. Step 3: Cross multiply
    560,967.82x = 840,828.43 × 427,407.73
  4. Step 4: Simplify right side
    560,967.82x = 359,376,570,585.76
  5. Step 5: Solve for x
    x = 359,376,570,585.76/560,967.82
  6. Step 6: Final answer
    x = 640,636.70

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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.