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Finding the Fourth Proportional to 920,285.64, 1,269,798.96 and 580,557

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Solution

The fourth proportional to 920,285.64, 1,269,798.96 and 580,557 is: 801,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,285.64 : 1,269,798.96 = 580,557 : x
  2. Step 2: Convert to fraction form
    920,285.64/1,269,798.96 = 580,557/x
  3. Step 3: Cross multiply
    920,285.64x = 1,269,798.96 × 580,557
  4. Step 4: Simplify right side
    920,285.64x = 737,190,674,820.72
  5. Step 5: Solve for x
    x = 737,190,674,820.72/920,285.64
  6. Step 6: Final answer
    x = 801,045.50

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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.