Home / 882,851.58-1,218,375.27-520,290.72

Finding the Fourth Proportional to 882,851.58, 1,218,375.27 and 520,290.72

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Solution

The fourth proportional to 882,851.58, 1,218,375.27 and 520,290.72 is: 718,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,851.58 : 1,218,375.27 = 520,290.72 : x
  2. Step 2: Convert to fraction form
    882,851.58/1,218,375.27 = 520,290.72/x
  3. Step 3: Cross multiply
    882,851.58x = 1,218,375.27 × 520,290.72
  4. Step 4: Simplify right side
    882,851.58x = 633,909,346,458.49
  5. Step 5: Solve for x
    x = 633,909,346,458.49/882,851.58
  6. Step 6: Final answer
    x = 718,024.82

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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.