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Finding the Fourth Proportional to 615,859.60, 849,869.64 and 343,919.92

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Solution

The fourth proportional to 615,859.60, 849,869.64 and 343,919.92 is: 474,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,859.60 : 849,869.64 = 343,919.92 : x
  2. Step 2: Convert to fraction form
    615,859.60/849,869.64 = 343,919.92/x
  3. Step 3: Cross multiply
    615,859.60x = 849,869.64 × 343,919.92
  4. Step 4: Simplify right side
    615,859.60x = 292,287,098,599.23
  5. Step 5: Solve for x
    x = 292,287,098,599.23/615,859.60
  6. Step 6: Final answer
    x = 474,600.22

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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.