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Finding the Fourth Proportional to 615,701.95, 849,660.63 and 343,774.46

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Solution

The fourth proportional to 615,701.95, 849,660.63 and 343,774.46 is: 474,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,701.95 : 849,660.63 = 343,774.46 : x
  2. Step 2: Convert to fraction form
    615,701.95/849,660.63 = 343,774.46/x
  3. Step 3: Cross multiply
    615,701.95x = 849,660.63 × 343,774.46
  4. Step 4: Simplify right side
    615,701.95x = 292,091,624,261.51
  5. Step 5: Solve for x
    x = 292,091,624,261.51/615,701.95
  6. Step 6: Final answer
    x = 474,404.26

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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.