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Finding the Fourth Proportional to 617,809.46, 852,536.90 and 345,875.18

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Solution

The fourth proportional to 617,809.46, 852,536.90 and 345,875.18 is: 477,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,809.46 : 852,536.90 = 345,875.18 : x
  2. Step 2: Convert to fraction form
    617,809.46/852,536.90 = 345,875.18/x
  3. Step 3: Cross multiply
    617,809.46x = 852,536.90 × 345,875.18
  4. Step 4: Simplify right side
    617,809.46x = 294,871,353,744.14
  5. Step 5: Solve for x
    x = 294,871,353,744.14/617,809.46
  6. Step 6: Final answer
    x = 477,285.27

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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.