Home / 495,946.78-684,414.05-278,203.71

Finding the Fourth Proportional to 495,946.78, 684,414.05 and 278,203.71

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Solution

The fourth proportional to 495,946.78, 684,414.05 and 278,203.71 is: 383,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,946.78 : 684,414.05 = 278,203.71 : x
  2. Step 2: Convert to fraction form
    495,946.78/684,414.05 = 278,203.71/x
  3. Step 3: Cross multiply
    495,946.78x = 684,414.05 × 278,203.71
  4. Step 4: Simplify right side
    495,946.78x = 190,406,529,061.66
  5. Step 5: Solve for x
    x = 190,406,529,061.66/495,946.78
  6. Step 6: Final answer
    x = 383,925.33

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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.