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Finding the Fourth Proportional to 499,219.36, 688,845.72 and 284,332.03

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Solution

The fourth proportional to 499,219.36, 688,845.72 and 284,332.03 is: 392,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,219.36 : 688,845.72 = 284,332.03 : x
  2. Step 2: Convert to fraction form
    499,219.36/688,845.72 = 284,332.03/x
  3. Step 3: Cross multiply
    499,219.36x = 688,845.72 × 284,332.03
  4. Step 4: Simplify right side
    499,219.36x = 195,860,901,924.41
  5. Step 5: Solve for x
    x = 195,860,901,924.41/499,219.36
  6. Step 6: Final answer
    x = 392,334.35

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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.