Home / 1,231,801.40-1,847,529.30-390,438.20

Finding the Fourth Proportional to 1,231,801.40, 1,847,529.30 and 390,438.20

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Solution

The fourth proportional to 1,231,801.40, 1,847,529.30 and 390,438.20 is: 585,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,801.40 : 1,847,529.30 = 390,438.20 : x
  2. Step 2: Convert to fraction form
    1,231,801.40/1,847,529.30 = 390,438.20/x
  3. Step 3: Cross multiply
    1,231,801.40x = 1,847,529.30 × 390,438.20
  4. Step 4: Simplify right side
    1,231,801.40x = 721,346,014,339.26
  5. Step 5: Solve for x
    x = 721,346,014,339.26/1,231,801.40
  6. Step 6: Final answer
    x = 585,602.53

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Double scale
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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.