Home / 876,005.10-1,314,007.65-870,100.20

Finding the Fourth Proportional to 876,005.10, 1,314,007.65 and 870,100.20

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Solution

The fourth proportional to 876,005.10, 1,314,007.65 and 870,100.20 is: 1,305,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,005.10 : 1,314,007.65 = 870,100.20 : x
  2. Step 2: Convert to fraction form
    876,005.10/1,314,007.65 = 870,100.20/x
  3. Step 3: Cross multiply
    876,005.10x = 1,314,007.65 × 870,100.20
  4. Step 4: Simplify right side
    876,005.10x = 1,143,318,319,066.53
  5. Step 5: Solve for x
    x = 1,143,318,319,066.53/876,005.10
  6. Step 6: Final answer
    x = 1,305,150.30

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Similar ratio
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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.