Home / 691,346.71-1,037,018.85-270,327.34

Finding the Fourth Proportional to 691,346.71, 1,037,018.85 and 270,327.34

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Solution

The fourth proportional to 691,346.71, 1,037,018.85 and 270,327.34 is: 405,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,346.71 : 1,037,018.85 = 270,327.34 : x
  2. Step 2: Convert to fraction form
    691,346.71/1,037,018.85 = 270,327.34/x
  3. Step 3: Cross multiply
    691,346.71x = 1,037,018.85 × 270,327.34
  4. Step 4: Simplify right side
    691,346.71x = 280,334,547,250.36
  5. Step 5: Solve for x
    x = 280,334,547,250.36/691,346.71
  6. Step 6: Final answer
    x = 405,490.53

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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.