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Finding the Fourth Proportional to 556,959.40, 768,472.20 and 315,241.94

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Solution

The fourth proportional to 556,959.40, 768,472.20 and 315,241.94 is: 434,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,959.40 : 768,472.20 = 315,241.94 : x
  2. Step 2: Convert to fraction form
    556,959.40/768,472.20 = 315,241.94/x
  3. Step 3: Cross multiply
    556,959.40x = 768,472.20 × 315,241.94
  4. Step 4: Simplify right side
    556,959.40x = 242,254,667,164.07
  5. Step 5: Solve for x
    x = 242,254,667,164.07/556,959.40
  6. Step 6: Final answer
    x = 434,959.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.