Home / 804,905.40-1,207,358.10-604,138.80

Finding the Fourth Proportional to 804,905.40, 1,207,358.10 and 604,138.80

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Solution

The fourth proportional to 804,905.40, 1,207,358.10 and 604,138.80 is: 906,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,905.40 : 1,207,358.10 = 604,138.80 : x
  2. Step 2: Convert to fraction form
    804,905.40/1,207,358.10 = 604,138.80/x
  3. Step 3: Cross multiply
    804,905.40x = 1,207,358.10 × 604,138.80
  4. Step 4: Simplify right side
    804,905.40x = 729,411,873,704.28
  5. Step 5: Solve for x
    x = 729,411,873,704.28/804,905.40
  6. Step 6: Final answer
    x = 906,208.20

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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.