Home / 717,763.20-1,076,802.48-212,284.78

Finding the Fourth Proportional to 717,763.20, 1,076,802.48 and 212,284.78

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Solution

The fourth proportional to 717,763.20, 1,076,802.48 and 212,284.78 is: 318,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,763.20 : 1,076,802.48 = 212,284.78 : x
  2. Step 2: Convert to fraction form
    717,763.20/1,076,802.48 = 212,284.78/x
  3. Step 3: Cross multiply
    717,763.20x = 1,076,802.48 × 212,284.78
  4. Step 4: Simplify right side
    717,763.20x = 228,588,774,878.25
  5. Step 5: Solve for x
    x = 228,588,774,878.25/717,763.20
  6. Step 6: Final answer
    x = 318,473.80

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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.