Home / 1,001,278.20-1,501,917.30-291,329.40

Finding the Fourth Proportional to 1,001,278.20, 1,501,917.30 and 291,329.40

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Solution

The fourth proportional to 1,001,278.20, 1,501,917.30 and 291,329.40 is: 436,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,278.20 : 1,501,917.30 = 291,329.40 : x
  2. Step 2: Convert to fraction form
    1,001,278.20/1,501,917.30 = 291,329.40/x
  3. Step 3: Cross multiply
    1,001,278.20x = 1,501,917.30 × 291,329.40
  4. Step 4: Simplify right side
    1,001,278.20x = 437,552,665,858.62
  5. Step 5: Solve for x
    x = 437,552,665,858.62/1,001,278.20
  6. Step 6: Final answer
    x = 436,994.10

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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.