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Finding the Fourth Proportional to 672,081.36, 926,611.40 and 550,775.76

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Solution

The fourth proportional to 672,081.36, 926,611.40 and 550,775.76 is: 759,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,081.36 : 926,611.40 = 550,775.76 : x
  2. Step 2: Convert to fraction form
    672,081.36/926,611.40 = 550,775.76/x
  3. Step 3: Cross multiply
    672,081.36x = 926,611.40 × 550,775.76
  4. Step 4: Simplify right side
    672,081.36x = 510,355,098,059.66
  5. Step 5: Solve for x
    x = 510,355,098,059.66/672,081.36
  6. Step 6: Final answer
    x = 759,365.05

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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.