Home / 870,870.36-1,306,354.20-271,914.24

Finding the Fourth Proportional to 870,870.36, 1,306,354.20 and 271,914.24

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Solution

The fourth proportional to 870,870.36, 1,306,354.20 and 271,914.24 is: 407,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,870.36 : 1,306,354.20 = 271,914.24 : x
  2. Step 2: Convert to fraction form
    870,870.36/1,306,354.20 = 271,914.24/x
  3. Step 3: Cross multiply
    870,870.36x = 1,306,354.20 × 271,914.24
  4. Step 4: Simplify right side
    870,870.36x = 355,216,309,463.81
  5. Step 5: Solve for x
    x = 355,216,309,463.81/870,870.36
  6. Step 6: Final answer
    x = 407,886.55

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Double scale
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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.