Home / 1,425,458.78-1,967,117.46-772,068.55

Finding the Fourth Proportional to 1,425,458.78, 1,967,117.46 and 772,068.55

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Solution

The fourth proportional to 1,425,458.78, 1,967,117.46 and 772,068.55 is: 1,065,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,458.78 : 1,967,117.46 = 772,068.55 : x
  2. Step 2: Convert to fraction form
    1,425,458.78/1,967,117.46 = 772,068.55/x
  3. Step 3: Cross multiply
    1,425,458.78x = 1,967,117.46 × 772,068.55
  4. Step 4: Simplify right side
    1,425,458.78x = 1,518,749,511,325.95
  5. Step 5: Solve for x
    x = 1,518,749,511,325.95/1,425,458.78
  6. Step 6: Final answer
    x = 1,065,446.11

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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.