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Finding the Fourth Proportional to 562,211.35, 775,857.78 and 307,557.07

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Solution

The fourth proportional to 562,211.35, 775,857.78 and 307,557.07 is: 424,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,211.35 : 775,857.78 = 307,557.07 : x
  2. Step 2: Convert to fraction form
    562,211.35/775,857.78 = 307,557.07/x
  3. Step 3: Cross multiply
    562,211.35x = 775,857.78 × 307,557.07
  4. Step 4: Simplify right side
    562,211.35x = 238,620,545,553.51
  5. Step 5: Solve for x
    x = 238,620,545,553.51/562,211.35
  6. Step 6: Final answer
    x = 424,432.10

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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.