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Finding the Fourth Proportional to 558,053.67, 770,119.47 and 303,410.28

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Solution

The fourth proportional to 558,053.67, 770,119.47 and 303,410.28 is: 418,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,053.67 : 770,119.47 = 303,410.28 : x
  2. Step 2: Convert to fraction form
    558,053.67/770,119.47 = 303,410.28/x
  3. Step 3: Cross multiply
    558,053.67x = 770,119.47 × 303,410.28
  4. Step 4: Simplify right side
    558,053.67x = 233,662,164,026.15
  5. Step 5: Solve for x
    x = 233,662,164,026.15/558,053.67
  6. Step 6: Final answer
    x = 418,709.13

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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.