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Finding the Fourth Proportional to 617,607.90, 852,104.66 and 345,632.58

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Solution

The fourth proportional to 617,607.90, 852,104.66 and 345,632.58 is: 476,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,607.90 : 852,104.66 = 345,632.58 : x
  2. Step 2: Convert to fraction form
    617,607.90/852,104.66 = 345,632.58/x
  3. Step 3: Cross multiply
    617,607.90x = 852,104.66 × 345,632.58
  4. Step 4: Simplify right side
    617,607.90x = 294,515,130,337.66
  5. Step 5: Solve for x
    x = 294,515,130,337.66/617,607.90
  6. Step 6: Final answer
    x = 476,864.25

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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.