Home / 921,297.66-1,271,429.94-513,400.02

Finding the Fourth Proportional to 921,297.66, 1,271,429.94 and 513,400.02

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Solution

The fourth proportional to 921,297.66, 1,271,429.94 and 513,400.02 is: 708,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,297.66 : 1,271,429.94 = 513,400.02 : x
  2. Step 2: Convert to fraction form
    921,297.66/1,271,429.94 = 513,400.02/x
  3. Step 3: Cross multiply
    921,297.66x = 1,271,429.94 × 513,400.02
  4. Step 4: Simplify right side
    921,297.66x = 652,752,156,624.60
  5. Step 5: Solve for x
    x = 652,752,156,624.60/921,297.66
  6. Step 6: Final answer
    x = 708,513.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.