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Finding the Fourth Proportional to 659,441.08, 910,200.54 and 417,840.76

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Solution

The fourth proportional to 659,441.08, 910,200.54 and 417,840.76 is: 576,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,441.08 : 910,200.54 = 417,840.76 : x
  2. Step 2: Convert to fraction form
    659,441.08/910,200.54 = 417,840.76/x
  3. Step 3: Cross multiply
    659,441.08x = 910,200.54 × 417,840.76
  4. Step 4: Simplify right side
    659,441.08x = 380,318,885,386.01
  5. Step 5: Solve for x
    x = 380,318,885,386.01/659,441.08
  6. Step 6: Final answer
    x = 576,729.14

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.