Home / 717,808.83-1,076,340.78-212,303.38

Finding the Fourth Proportional to 717,808.83, 1,076,340.78 and 212,303.38

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Solution

The fourth proportional to 717,808.83, 1,076,340.78 and 212,303.38 is: 318,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,808.83 : 1,076,340.78 = 212,303.38 : x
  2. Step 2: Convert to fraction form
    717,808.83/1,076,340.78 = 212,303.38/x
  3. Step 3: Cross multiply
    717,808.83x = 1,076,340.78 × 212,303.38
  4. Step 4: Simplify right side
    717,808.83x = 228,510,779,182.62
  5. Step 5: Solve for x
    x = 228,510,779,182.62/717,808.83
  6. Step 6: Final answer
    x = 318,344.90

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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.