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Finding the Fourth Proportional to 615,379.86, 849,222.36 and 343,444.77

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Solution

The fourth proportional to 615,379.86, 849,222.36 and 343,444.77 is: 473,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,379.86 : 849,222.36 = 343,444.77 : x
  2. Step 2: Convert to fraction form
    615,379.86/849,222.36 = 343,444.77/x
  3. Step 3: Cross multiply
    615,379.86x = 849,222.36 × 343,444.77
  4. Step 4: Simplify right side
    615,379.86x = 291,660,978,109.06
  5. Step 5: Solve for x
    x = 291,660,978,109.06/615,379.86
  6. Step 6: Final answer
    x = 473,952.75

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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.