Home / 1,385,923.19-2,078,959.30-439,367.72

Finding the Fourth Proportional to 1,385,923.19, 2,078,959.30 and 439,367.72

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Solution

The fourth proportional to 1,385,923.19, 2,078,959.30 and 439,367.72 is: 659,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,923.19 : 2,078,959.30 = 439,367.72 : x
  2. Step 2: Convert to fraction form
    1,385,923.19/2,078,959.30 = 439,367.72/x
  3. Step 3: Cross multiply
    1,385,923.19x = 2,078,959.30 × 439,367.72
  4. Step 4: Simplify right side
    1,385,923.19x = 913,427,596,120.58
  5. Step 5: Solve for x
    x = 913,427,596,120.58/1,385,923.19
  6. Step 6: Final answer
    x = 659,075.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.