Home / 717,970.40-1,076,966.84-212,582.65

Finding the Fourth Proportional to 717,970.40, 1,076,966.84 and 212,582.65

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Solution

The fourth proportional to 717,970.40, 1,076,966.84 and 212,582.65 is: 318,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,970.40 : 1,076,966.84 = 212,582.65 : x
  2. Step 2: Convert to fraction form
    717,970.40/1,076,966.84 = 212,582.65/x
  3. Step 3: Cross multiply
    717,970.40x = 1,076,966.84 × 212,582.65
  4. Step 4: Simplify right side
    717,970.40x = 228,944,458,361.58
  5. Step 5: Solve for x
    x = 228,944,458,361.58/717,970.40
  6. Step 6: Final answer
    x = 318,877.29

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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.