Home / 717,809.33-1,076,341.52-212,303.87

Finding the Fourth Proportional to 717,809.33, 1,076,341.52 and 212,303.87

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Solution

The fourth proportional to 717,809.33, 1,076,341.52 and 212,303.87 is: 318,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,809.33 : 1,076,341.52 = 212,303.87 : x
  2. Step 2: Convert to fraction form
    717,809.33/1,076,341.52 = 212,303.87/x
  3. Step 3: Cross multiply
    717,809.33x = 1,076,341.52 × 212,303.87
  4. Step 4: Simplify right side
    717,809.33x = 228,511,470,137.68
  5. Step 5: Solve for x
    x = 228,511,470,137.68/717,809.33
  6. Step 6: Final answer
    x = 318,345.64

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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.