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Finding the Fourth Proportional to 510,679.48, 703,216.02 and 499,350.28

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Solution

The fourth proportional to 510,679.48, 703,216.02 and 499,350.28 is: 687,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,679.48 : 703,216.02 = 499,350.28 : x
  2. Step 2: Convert to fraction form
    510,679.48/703,216.02 = 499,350.28/x
  3. Step 3: Cross multiply
    510,679.48x = 703,216.02 × 499,350.28
  4. Step 4: Simplify right side
    510,679.48x = 351,151,116,487.49
  5. Step 5: Solve for x
    x = 351,151,116,487.49/510,679.48
  6. Step 6: Final answer
    x = 687,615.48

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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.