Home / 990,175.40-1,485,263.10-654,252.20

Finding the Fourth Proportional to 990,175.40, 1,485,263.10 and 654,252.20

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Solution

The fourth proportional to 990,175.40, 1,485,263.10 and 654,252.20 is: 981,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,175.40 : 1,485,263.10 = 654,252.20 : x
  2. Step 2: Convert to fraction form
    990,175.40/1,485,263.10 = 654,252.20/x
  3. Step 3: Cross multiply
    990,175.40x = 1,485,263.10 × 654,252.20
  4. Step 4: Simplify right side
    990,175.40x = 971,736,650,753.82
  5. Step 5: Solve for x
    x = 971,736,650,753.82/990,175.40
  6. Step 6: Final answer
    x = 981,378.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.