Home / 495,319.87-683,528.25-280,480.33

Finding the Fourth Proportional to 495,319.87, 683,528.25 and 280,480.33

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Solution

The fourth proportional to 495,319.87, 683,528.25 and 280,480.33 is: 387,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,319.87 : 683,528.25 = 280,480.33 : x
  2. Step 2: Convert to fraction form
    495,319.87/683,528.25 = 280,480.33/x
  3. Step 3: Cross multiply
    495,319.87x = 683,528.25 × 280,480.33
  4. Step 4: Simplify right side
    495,319.87x = 191,716,229,124.32
  5. Step 5: Solve for x
    x = 191,716,229,124.32/495,319.87
  6. Step 6: Final answer
    x = 387,055.40

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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.