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Finding the Fourth Proportional to 554,307.60, 829,385.40 and 394,752.40

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Solution

The fourth proportional to 554,307.60, 829,385.40 and 394,752.40 is: 590,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,307.60 : 829,385.40 = 394,752.40 : x
  2. Step 2: Convert to fraction form
    554,307.60/829,385.40 = 394,752.40/x
  3. Step 3: Cross multiply
    554,307.60x = 829,385.40 × 394,752.40
  4. Step 4: Simplify right side
    554,307.60x = 327,401,877,174.96
  5. Step 5: Solve for x
    x = 327,401,877,174.96/554,307.60
  6. Step 6: Final answer
    x = 590,650.17

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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.