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Finding the Fourth Proportional to 800,598.78, 1,104,618.87 and 478,166.94

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Solution

The fourth proportional to 800,598.78, 1,104,618.87 and 478,166.94 is: 659,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,598.78 : 1,104,618.87 = 478,166.94 : x
  2. Step 2: Convert to fraction form
    800,598.78/1,104,618.87 = 478,166.94/x
  3. Step 3: Cross multiply
    800,598.78x = 1,104,618.87 × 478,166.94
  4. Step 4: Simplify right side
    800,598.78x = 528,192,224,934.16
  5. Step 5: Solve for x
    x = 528,192,224,934.16/800,598.78
  6. Step 6: Final answer
    x = 659,746.48

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1.5x scale

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.