Home / 1,097,307.80-1,645,961.70-387,330.20

Finding the Fourth Proportional to 1,097,307.80, 1,645,961.70 and 387,330.20

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Solution

The fourth proportional to 1,097,307.80, 1,645,961.70 and 387,330.20 is: 580,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,307.80 : 1,645,961.70 = 387,330.20 : x
  2. Step 2: Convert to fraction form
    1,097,307.80/1,645,961.70 = 387,330.20/x
  3. Step 3: Cross multiply
    1,097,307.80x = 1,645,961.70 × 387,330.20
  4. Step 4: Simplify right side
    1,097,307.80x = 637,530,674,453.34
  5. Step 5: Solve for x
    x = 637,530,674,453.34/1,097,307.80
  6. Step 6: Final answer
    x = 580,995.30

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Double scale
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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.