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Finding the Fourth Proportional to 529,280.70, 793,921.05 and 520,064.70

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Solution

The fourth proportional to 529,280.70, 793,921.05 and 520,064.70 is: 780,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,280.70 : 793,921.05 = 520,064.70 : x
  2. Step 2: Convert to fraction form
    529,280.70/793,921.05 = 520,064.70/x
  3. Step 3: Cross multiply
    529,280.70x = 793,921.05 × 520,064.70
  4. Step 4: Simplify right side
    529,280.70x = 412,890,312,691.94
  5. Step 5: Solve for x
    x = 412,890,312,691.94/529,280.70
  6. Step 6: Final answer
    x = 780,097.05

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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.