Home / 495,440.86-683,685.49-280,582.47

Finding the Fourth Proportional to 495,440.86, 683,685.49 and 280,582.47

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Solution

The fourth proportional to 495,440.86, 683,685.49 and 280,582.47 is: 387,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,440.86 : 683,685.49 = 280,582.47 : x
  2. Step 2: Convert to fraction form
    495,440.86/683,685.49 = 280,582.47/x
  3. Step 3: Cross multiply
    495,440.86x = 683,685.49 × 280,582.47
  4. Step 4: Simplify right side
    495,440.86x = 191,830,163,487.36
  5. Step 5: Solve for x
    x = 191,830,163,487.36/495,440.86
  6. Step 6: Final answer
    x = 387,190.84

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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.