Home / 817,426.80-1,128,080.88-494,954.64

Finding the Fourth Proportional to 817,426.80, 1,128,080.88 and 494,954.64

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Solution

The fourth proportional to 817,426.80, 1,128,080.88 and 494,954.64 is: 683,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,426.80 : 1,128,080.88 = 494,954.64 : x
  2. Step 2: Convert to fraction form
    817,426.80/1,128,080.88 = 494,954.64/x
  3. Step 3: Cross multiply
    817,426.80x = 1,128,080.88 × 494,954.64
  4. Step 4: Simplify right side
    817,426.80x = 558,348,865,851.28
  5. Step 5: Solve for x
    x = 558,348,865,851.28/817,426.80
  6. Step 6: Final answer
    x = 683,056.72

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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.