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Finding the Fourth Proportional to 617,431.90, 852,095.55 and 345,531.10

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Solution

The fourth proportional to 617,431.90, 852,095.55 and 345,531.10 is: 476,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,431.90 : 852,095.55 = 345,531.10 : x
  2. Step 2: Convert to fraction form
    617,431.90/852,095.55 = 345,531.10/x
  3. Step 3: Cross multiply
    617,431.90x = 852,095.55 × 345,531.10
  4. Step 4: Simplify right side
    617,431.90x = 294,425,512,696.61
  5. Step 5: Solve for x
    x = 294,425,512,696.61/617,431.90
  6. Step 6: Final answer
    x = 476,855.04

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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.