Home / 785,617.36-1,084,121.45-480,205.10

Finding the Fourth Proportional to 785,617.36, 1,084,121.45 and 480,205.10

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Solution

The fourth proportional to 785,617.36, 1,084,121.45 and 480,205.10 is: 662,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,617.36 : 1,084,121.45 = 480,205.10 : x
  2. Step 2: Convert to fraction form
    785,617.36/1,084,121.45 = 480,205.10/x
  3. Step 3: Cross multiply
    785,617.36x = 1,084,121.45 × 480,205.10
  4. Step 4: Simplify right side
    785,617.36x = 520,600,651,419.44
  5. Step 5: Solve for x
    x = 520,600,651,419.44/785,617.36
  6. Step 6: Final answer
    x = 662,664.40

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Double scale
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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.