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Finding the Fourth Proportional to 615,701.63, 849,660.19 and 343,774.15

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Solution

The fourth proportional to 615,701.63, 849,660.19 and 343,774.15 is: 474,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,701.63 : 849,660.19 = 343,774.15 : x
  2. Step 2: Convert to fraction form
    615,701.63/849,660.19 = 343,774.15/x
  3. Step 3: Cross multiply
    615,701.63x = 849,660.19 × 343,774.15
  4. Step 4: Simplify right side
    615,701.63x = 292,091,206,622.50
  5. Step 5: Solve for x
    x = 292,091,206,622.50/615,701.63
  6. Step 6: Final answer
    x = 474,403.82

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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.