Home / 717,693.20-1,076,345.40-212,253.20

Finding the Fourth Proportional to 717,693.20, 1,076,345.40 and 212,253.20

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Solution

The fourth proportional to 717,693.20, 1,076,345.40 and 212,253.20 is: 318,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,693.20 : 1,076,345.40 = 212,253.20 : x
  2. Step 2: Convert to fraction form
    717,693.20/1,076,345.40 = 212,253.20/x
  3. Step 3: Cross multiply
    717,693.20x = 1,076,345.40 × 212,253.20
  4. Step 4: Simplify right side
    717,693.20x = 228,457,755,455.28
  5. Step 5: Solve for x
    x = 228,457,755,455.28/717,693.20
  6. Step 6: Final answer
    x = 318,322.31

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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.