Home / 779,771.58-1,075,635.63-469,458.15

Finding the Fourth Proportional to 779,771.58, 1,075,635.63 and 469,458.15

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Solution

The fourth proportional to 779,771.58, 1,075,635.63 and 469,458.15 is: 647,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,771.58 : 1,075,635.63 = 469,458.15 : x
  2. Step 2: Convert to fraction form
    779,771.58/1,075,635.63 = 469,458.15/x
  3. Step 3: Cross multiply
    779,771.58x = 1,075,635.63 × 469,458.15
  4. Step 4: Simplify right side
    779,771.58x = 504,965,916,655.58
  5. Step 5: Solve for x
    x = 504,965,916,655.58/779,771.58
  6. Step 6: Final answer
    x = 647,581.84

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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.