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Finding the Fourth Proportional to 800,733.24, 1,104,978.87 and 478,620.93

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Solution

The fourth proportional to 800,733.24, 1,104,978.87 and 478,620.93 is: 660,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,733.24 : 1,104,978.87 = 478,620.93 : x
  2. Step 2: Convert to fraction form
    800,733.24/1,104,978.87 = 478,620.93/x
  3. Step 3: Cross multiply
    800,733.24x = 1,104,978.87 × 478,620.93
  4. Step 4: Simplify right side
    800,733.24x = 528,866,014,389.75
  5. Step 5: Solve for x
    x = 528,866,014,389.75/800,733.24
  6. Step 6: Final answer
    x = 660,477.16

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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.