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Finding the Fourth Proportional to 436,307.60, 602,094.12 and 285,401.36

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Solution

The fourth proportional to 436,307.60, 602,094.12 and 285,401.36 is: 393,847.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,307.60 : 602,094.12 = 285,401.36 : x
  2. Step 2: Convert to fraction form
    436,307.60/602,094.12 = 285,401.36/x
  3. Step 3: Cross multiply
    436,307.60x = 602,094.12 × 285,401.36
  4. Step 4: Simplify right side
    436,307.60x = 171,838,480,696.00
  5. Step 5: Solve for x
    x = 171,838,480,696.00/436,307.60
  6. Step 6: Final answer
    x = 393,847.09

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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.