Home / 495,795.09-684,195.33-280,976.22

Finding the Fourth Proportional to 495,795.09, 684,195.33 and 280,976.22

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Solution

The fourth proportional to 495,795.09, 684,195.33 and 280,976.22 is: 387,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,795.09 : 684,195.33 = 280,976.22 : x
  2. Step 2: Convert to fraction form
    495,795.09/684,195.33 = 280,976.22/x
  3. Step 3: Cross multiply
    495,795.09x = 684,195.33 × 280,976.22
  4. Step 4: Simplify right side
    495,795.09x = 192,242,617,565.05
  5. Step 5: Solve for x
    x = 192,242,617,565.05/495,795.09
  6. Step 6: Final answer
    x = 387,746.11

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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.