Home / 864,890.85-1,297,460.31-265,902.30

Finding the Fourth Proportional to 864,890.85, 1,297,460.31 and 265,902.30

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Solution

The fourth proportional to 864,890.85, 1,297,460.31 and 265,902.30 is: 398,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,890.85 : 1,297,460.31 = 265,902.30 : x
  2. Step 2: Convert to fraction form
    864,890.85/1,297,460.31 = 265,902.30/x
  3. Step 3: Cross multiply
    864,890.85x = 1,297,460.31 × 265,902.30
  4. Step 4: Simplify right side
    864,890.85x = 344,997,680,587.71
  5. Step 5: Solve for x
    x = 344,997,680,587.71/864,890.85
  6. Step 6: Final answer
    x = 398,891.58

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1.5x scale

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.