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Finding the Fourth Proportional to 615,726.99, 849,755.76 and 343,847.40

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Solution

The fourth proportional to 615,726.99, 849,755.76 and 343,847.40 is: 474,538.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,726.99 : 849,755.76 = 343,847.40 : x
  2. Step 2: Convert to fraction form
    615,726.99/849,755.76 = 343,847.40/x
  3. Step 3: Cross multiply
    615,726.99x = 849,755.76 × 343,847.40
  4. Step 4: Simplify right side
    615,726.99x = 292,186,308,711.02
  5. Step 5: Solve for x
    x = 292,186,308,711.02/615,726.99
  6. Step 6: Final answer
    x = 474,538.74

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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.