Home / 890,016.40-1,334,117.40-440,045.20

Finding the Fourth Proportional to 890,016.40, 1,334,117.40 and 440,045.20

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Solution

The fourth proportional to 890,016.40, 1,334,117.40 and 440,045.20 is: 659,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,016.40 : 1,334,117.40 = 440,045.20 : x
  2. Step 2: Convert to fraction form
    890,016.40/1,334,117.40 = 440,045.20/x
  3. Step 3: Cross multiply
    890,016.40x = 1,334,117.40 × 440,045.20
  4. Step 4: Simplify right side
    890,016.40x = 587,071,958,106.48
  5. Step 5: Solve for x
    x = 587,071,958,106.48/890,016.40
  6. Step 6: Final answer
    x = 659,619.26

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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.