Home / 790,698.60-1,091,165.76-428,126.76

Finding the Fourth Proportional to 790,698.60, 1,091,165.76 and 428,126.76

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Solution

The fourth proportional to 790,698.60, 1,091,165.76 and 428,126.76 is: 590,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,698.60 : 1,091,165.76 = 428,126.76 : x
  2. Step 2: Convert to fraction form
    790,698.60/1,091,165.76 = 428,126.76/x
  3. Step 3: Cross multiply
    790,698.60x = 1,091,165.76 × 428,126.76
  4. Step 4: Simplify right side
    790,698.60x = 467,157,261,451.74
  5. Step 5: Solve for x
    x = 467,157,261,451.74/790,698.60
  6. Step 6: Final answer
    x = 590,815.84

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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.