Home / 495,917.98-684,318.93-278,135.61

Finding the Fourth Proportional to 495,917.98, 684,318.93 and 278,135.61

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Solution

The fourth proportional to 495,917.98, 684,318.93 and 278,135.61 is: 383,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,917.98 : 684,318.93 = 278,135.61 : x
  2. Step 2: Convert to fraction form
    495,917.98/684,318.93 = 278,135.61/x
  3. Step 3: Cross multiply
    495,917.98x = 684,318.93 × 278,135.61
  4. Step 4: Simplify right side
    495,917.98x = 190,333,459,420.89
  5. Step 5: Solve for x
    x = 190,333,459,420.89/495,917.98
  6. Step 6: Final answer
    x = 383,800.28

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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.