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Finding the Fourth Proportional to 665,363.70, 998,671.95 and 350,046.90

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Solution

The fourth proportional to 665,363.70, 998,671.95 and 350,046.90 is: 525,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,363.70 : 998,671.95 = 350,046.90 : x
  2. Step 2: Convert to fraction form
    665,363.70/998,671.95 = 350,046.90/x
  3. Step 3: Cross multiply
    665,363.70x = 998,671.95 × 350,046.90
  4. Step 4: Simplify right side
    665,363.70x = 349,582,020,214.46
  5. Step 5: Solve for x
    x = 349,582,020,214.46/665,363.70
  6. Step 6: Final answer
    x = 525,399.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.