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Finding the Fourth Proportional to 540,109, 745,350.42 and 301,645

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Solution

The fourth proportional to 540,109, 745,350.42 and 301,645 is: 416,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,109 : 745,350.42 = 301,645 : x
  2. Step 2: Convert to fraction form
    540,109/745,350.42 = 301,645/x
  3. Step 3: Cross multiply
    540,109x = 745,350.42 × 301,645
  4. Step 4: Simplify right side
    540,109x = 224,831,227,440.90
  5. Step 5: Solve for x
    x = 224,831,227,440.90/540,109
  6. Step 6: Final answer
    x = 416,270.10

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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.