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Finding the Fourth Proportional to 800,572.58, 1,105,270.68 and 495,058.59

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Solution

The fourth proportional to 800,572.58, 1,105,270.68 and 495,058.59 is: 683,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,572.58 : 1,105,270.68 = 495,058.59 : x
  2. Step 2: Convert to fraction form
    800,572.58/1,105,270.68 = 495,058.59/x
  3. Step 3: Cross multiply
    800,572.58x = 1,105,270.68 × 495,058.59
  4. Step 4: Simplify right side
    800,572.58x = 547,173,744,409.14
  5. Step 5: Solve for x
    x = 547,173,744,409.14/800,572.58
  6. Step 6: Final answer
    x = 683,478.00

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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.