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Finding the Fourth Proportional to 555,469.20, 833,203.80 and 520,477.20

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Solution

The fourth proportional to 555,469.20, 833,203.80 and 520,477.20 is: 780,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,469.20 : 833,203.80 = 520,477.20 : x
  2. Step 2: Convert to fraction form
    555,469.20/833,203.80 = 520,477.20/x
  3. Step 3: Cross multiply
    555,469.20x = 833,203.80 × 520,477.20
  4. Step 4: Simplify right side
    555,469.20x = 433,663,580,853.36
  5. Step 5: Solve for x
    x = 433,663,580,853.36/555,469.20
  6. Step 6: Final answer
    x = 780,715.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.