Home / 906,104.80-1,250,315.76-498,139.36

Finding the Fourth Proportional to 906,104.80, 1,250,315.76 and 498,139.36

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Solution

The fourth proportional to 906,104.80, 1,250,315.76 and 498,139.36 is: 687,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,104.80 : 1,250,315.76 = 498,139.36 : x
  2. Step 2: Convert to fraction form
    906,104.80/1,250,315.76 = 498,139.36/x
  3. Step 3: Cross multiply
    906,104.80x = 1,250,315.76 × 498,139.36
  4. Step 4: Simplify right side
    906,104.80x = 622,831,492,484.31
  5. Step 5: Solve for x
    x = 622,831,492,484.31/906,104.80
  6. Step 6: Final answer
    x = 687,372.47

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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.