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Finding the Fourth Proportional to 558,087.40, 770,151.54 and 303,445

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Solution

The fourth proportional to 558,087.40, 770,151.54 and 303,445 is: 418,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,087.40 : 770,151.54 = 303,445 : x
  2. Step 2: Convert to fraction form
    558,087.40/770,151.54 = 303,445/x
  3. Step 3: Cross multiply
    558,087.40x = 770,151.54 × 303,445
  4. Step 4: Simplify right side
    558,087.40x = 233,698,634,055.30
  5. Step 5: Solve for x
    x = 233,698,634,055.30/558,087.40
  6. Step 6: Final answer
    x = 418,749.17

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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.