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Finding the Fourth Proportional to 615,868.72, 849,775.56 and 343,894.77

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Solution

The fourth proportional to 615,868.72, 849,775.56 and 343,894.77 is: 474,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,868.72 : 849,775.56 = 343,894.77 : x
  2. Step 2: Convert to fraction form
    615,868.72/849,775.56 = 343,894.77/x
  3. Step 3: Cross multiply
    615,868.72x = 849,775.56 × 343,894.77
  4. Step 4: Simplify right side
    615,868.72x = 292,233,364,789.47
  5. Step 5: Solve for x
    x = 292,233,364,789.47/615,868.72
  6. Step 6: Final answer
    x = 474,505.94

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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.