Home / 1,009,418.04-1,392,645.14-647,041.72

Finding the Fourth Proportional to 1,009,418.04, 1,392,645.14 and 647,041.72

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Solution

The fourth proportional to 1,009,418.04, 1,392,645.14 and 647,041.72 is: 892,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,418.04 : 1,392,645.14 = 647,041.72 : x
  2. Step 2: Convert to fraction form
    1,009,418.04/1,392,645.14 = 647,041.72/x
  3. Step 3: Cross multiply
    1,009,418.04x = 1,392,645.14 × 647,041.72
  4. Step 4: Simplify right side
    1,009,418.04x = 901,099,506,735.24
  5. Step 5: Solve for x
    x = 901,099,506,735.24/1,009,418.04
  6. Step 6: Final answer
    x = 892,692.10

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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.