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Finding the Fourth Proportional to 617,459.92, 852,140.46 and 345,555.04

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Solution

The fourth proportional to 617,459.92, 852,140.46 and 345,555.04 is: 476,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,459.92 : 852,140.46 = 345,555.04 : x
  2. Step 2: Convert to fraction form
    617,459.92/852,140.46 = 345,555.04/x
  3. Step 3: Cross multiply
    617,459.92x = 852,140.46 × 345,555.04
  4. Step 4: Simplify right side
    617,459.92x = 294,461,430,740.92
  5. Step 5: Solve for x
    x = 294,461,430,740.92/617,459.92
  6. Step 6: Final answer
    x = 476,891.57

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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.