Home / 775,595.78-1,069,885.11-465,418.16

Finding the Fourth Proportional to 775,595.78, 1,069,885.11 and 465,418.16

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Solution

The fourth proportional to 775,595.78, 1,069,885.11 and 465,418.16 is: 642,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,595.78 : 1,069,885.11 = 465,418.16 : x
  2. Step 2: Convert to fraction form
    775,595.78/1,069,885.11 = 465,418.16/x
  3. Step 3: Cross multiply
    775,595.78x = 1,069,885.11 × 465,418.16
  4. Step 4: Simplify right side
    775,595.78x = 497,943,959,307.60
  5. Step 5: Solve for x
    x = 497,943,959,307.60/775,595.78
  6. Step 6: Final answer
    x = 642,014.79

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Double scale
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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.