Home / 890,611.70-1,336,079.55-291,406.10

Finding the Fourth Proportional to 890,611.70, 1,336,079.55 and 291,406.10

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Solution

The fourth proportional to 890,611.70, 1,336,079.55 and 291,406.10 is: 437,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,611.70 : 1,336,079.55 = 291,406.10 : x
  2. Step 2: Convert to fraction form
    890,611.70/1,336,079.55 = 291,406.10/x
  3. Step 3: Cross multiply
    890,611.70x = 1,336,079.55 × 291,406.10
  4. Step 4: Simplify right side
    890,611.70x = 389,341,730,955.26
  5. Step 5: Solve for x
    x = 389,341,730,955.26/890,611.70
  6. Step 6: Final answer
    x = 437,162.16

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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.