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Finding the Fourth Proportional to 800,858.16, 1,105,430.28 and 461,552.40

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Solution

The fourth proportional to 800,858.16, 1,105,430.28 and 461,552.40 is: 637,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,858.16 : 1,105,430.28 = 461,552.40 : x
  2. Step 2: Convert to fraction form
    800,858.16/1,105,430.28 = 461,552.40/x
  3. Step 3: Cross multiply
    800,858.16x = 1,105,430.28 × 461,552.40
  4. Step 4: Simplify right side
    800,858.16x = 510,213,998,766.67
  5. Step 5: Solve for x
    x = 510,213,998,766.67/800,858.16
  6. Step 6: Final answer
    x = 637,084.10

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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.