Home / 558,030.36-770,079.42-303,380.76

Finding the Fourth Proportional to 558,030.36, 770,079.42 and 303,380.76

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Solution

The fourth proportional to 558,030.36, 770,079.42 and 303,380.76 is: 418,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,030.36 : 770,079.42 = 303,380.76 : x
  2. Step 2: Convert to fraction form
    558,030.36/770,079.42 = 303,380.76/x
  3. Step 3: Cross multiply
    558,030.36x = 770,079.42 × 303,380.76
  4. Step 4: Simplify right side
    558,030.36x = 233,627,279,699.96
  5. Step 5: Solve for x
    x = 233,627,279,699.96/558,030.36
  6. Step 6: Final answer
    x = 418,664.10

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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.