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Finding the Fourth Proportional to 556,355.40, 834,533.10 and 276,419.40

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Solution

The fourth proportional to 556,355.40, 834,533.10 and 276,419.40 is: 414,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,355.40 : 834,533.10 = 276,419.40 : x
  2. Step 2: Convert to fraction form
    556,355.40/834,533.10 = 276,419.40/x
  3. Step 3: Cross multiply
    556,355.40x = 834,533.10 × 276,419.40
  4. Step 4: Simplify right side
    556,355.40x = 230,681,138,782.14
  5. Step 5: Solve for x
    x = 230,681,138,782.14/556,355.40
  6. Step 6: Final answer
    x = 414,629.10

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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.