Home / 495,916.85-684,317.37-278,134.48

Finding the Fourth Proportional to 495,916.85, 684,317.37 and 278,134.48

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Solution

The fourth proportional to 495,916.85, 684,317.37 and 278,134.48 is: 383,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,916.85 : 684,317.37 = 278,134.48 : x
  2. Step 2: Convert to fraction form
    495,916.85/684,317.37 = 278,134.48/x
  3. Step 3: Cross multiply
    495,916.85x = 684,317.37 × 278,134.48
  4. Step 4: Simplify right side
    495,916.85x = 190,332,257,758.32
  5. Step 5: Solve for x
    x = 190,332,257,758.32/495,916.85
  6. Step 6: Final answer
    x = 383,798.73

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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.