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Finding the Fourth Proportional to 800,877.49, 1,105,200.53 and 438,294.76

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Solution

The fourth proportional to 800,877.49, 1,105,200.53 and 438,294.76 is: 604,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,877.49 : 1,105,200.53 = 438,294.76 : x
  2. Step 2: Convert to fraction form
    800,877.49/1,105,200.53 = 438,294.76/x
  3. Step 3: Cross multiply
    800,877.49x = 1,105,200.53 × 438,294.76
  4. Step 4: Simplify right side
    800,877.49x = 484,403,601,048.22
  5. Step 5: Solve for x
    x = 484,403,601,048.22/800,877.49
  6. Step 6: Final answer
    x = 604,841.07

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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.