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Finding the Fourth Proportional to 615,699.86, 849,807.52 and 361,133.06

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Solution

The fourth proportional to 615,699.86, 849,807.52 and 361,133.06 is: 498,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,699.86 : 849,807.52 = 361,133.06 : x
  2. Step 2: Convert to fraction form
    615,699.86/849,807.52 = 361,133.06/x
  3. Step 3: Cross multiply
    615,699.86x = 849,807.52 × 361,133.06
  4. Step 4: Simplify right side
    615,699.86x = 306,893,590,108.61
  5. Step 5: Solve for x
    x = 306,893,590,108.61/615,699.86
  6. Step 6: Final answer
    x = 498,446.74

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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.