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Finding the Fourth Proportional to 500,170.74, 750,254.98 and 386,483.87

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Solution

The fourth proportional to 500,170.74, 750,254.98 and 386,483.87 is: 579,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,170.74 : 750,254.98 = 386,483.87 : x
  2. Step 2: Convert to fraction form
    500,170.74/750,254.98 = 386,483.87/x
  3. Step 3: Cross multiply
    500,170.74x = 750,254.98 × 386,483.87
  4. Step 4: Simplify right side
    500,170.74x = 289,961,449,066.60
  5. Step 5: Solve for x
    x = 289,961,449,066.60/500,170.74
  6. Step 6: Final answer
    x = 579,724.93

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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.