Home / 906,776.66-1,251,351.84-498,869.78

Finding the Fourth Proportional to 906,776.66, 1,251,351.84 and 498,869.78

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Solution

The fourth proportional to 906,776.66, 1,251,351.84 and 498,869.78 is: 688,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,776.66 : 1,251,351.84 = 498,869.78 : x
  2. Step 2: Convert to fraction form
    906,776.66/1,251,351.84 = 498,869.78/x
  3. Step 3: Cross multiply
    906,776.66x = 1,251,351.84 × 498,869.78
  4. Step 4: Simplify right side
    906,776.66x = 624,261,610,866.64
  5. Step 5: Solve for x
    x = 624,261,610,866.64/906,776.66
  6. Step 6: Final answer
    x = 688,440.32

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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.