Home / 495,733.05-684,109.80-280,914.17

Finding the Fourth Proportional to 495,733.05, 684,109.80 and 280,914.17

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Solution

The fourth proportional to 495,733.05, 684,109.80 and 280,914.17 is: 387,660.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,733.05 : 684,109.80 = 280,914.17 : x
  2. Step 2: Convert to fraction form
    495,733.05/684,109.80 = 280,914.17/x
  3. Step 3: Cross multiply
    495,733.05x = 684,109.80 × 280,914.17
  4. Step 4: Simplify right side
    495,733.05x = 192,176,133,235.32
  5. Step 5: Solve for x
    x = 192,176,133,235.32/495,733.05
  6. Step 6: Final answer
    x = 387,660.52

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1.5x scale

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.