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Finding the Fourth Proportional to 456,611.40, 630,050.13 and 286,725.24

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Solution

The fourth proportional to 456,611.40, 630,050.13 and 286,725.24 is: 395,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,611.40 : 630,050.13 = 286,725.24 : x
  2. Step 2: Convert to fraction form
    456,611.40/630,050.13 = 286,725.24/x
  3. Step 3: Cross multiply
    456,611.40x = 630,050.13 × 286,725.24
  4. Step 4: Simplify right side
    456,611.40x = 180,651,274,736.28
  5. Step 5: Solve for x
    x = 180,651,274,736.28/456,611.40
  6. Step 6: Final answer
    x = 395,634.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.