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Finding the Fourth Proportional to 904,649.86, 1,248,360.89 and 496,750.06

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Solution

The fourth proportional to 904,649.86, 1,248,360.89 and 496,750.06 is: 685,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,649.86 : 1,248,360.89 = 496,750.06 : x
  2. Step 2: Convert to fraction form
    904,649.86/1,248,360.89 = 496,750.06/x
  3. Step 3: Cross multiply
    904,649.86x = 1,248,360.89 × 496,750.06
  4. Step 4: Simplify right side
    904,649.86x = 620,123,347,009.15
  5. Step 5: Solve for x
    x = 620,123,347,009.15/904,649.86
  6. Step 6: Final answer
    x = 685,484.38

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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.