Home / 851,458.32-1,175,036.14-520,367.89

Finding the Fourth Proportional to 851,458.32, 1,175,036.14 and 520,367.89

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Solution

The fourth proportional to 851,458.32, 1,175,036.14 and 520,367.89 is: 718,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,458.32 : 1,175,036.14 = 520,367.89 : x
  2. Step 2: Convert to fraction form
    851,458.32/1,175,036.14 = 520,367.89/x
  3. Step 3: Cross multiply
    851,458.32x = 1,175,036.14 × 520,367.89
  4. Step 4: Simplify right side
    851,458.32x = 611,451,076,845.55
  5. Step 5: Solve for x
    x = 611,451,076,845.55/851,458.32
  6. Step 6: Final answer
    x = 718,122.15

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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.