Home / 999,051.40-1,498,577.10-663,128.20

Finding the Fourth Proportional to 999,051.40, 1,498,577.10 and 663,128.20

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Solution

The fourth proportional to 999,051.40, 1,498,577.10 and 663,128.20 is: 994,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,051.40 : 1,498,577.10 = 663,128.20 : x
  2. Step 2: Convert to fraction form
    999,051.40/1,498,577.10 = 663,128.20/x
  3. Step 3: Cross multiply
    999,051.40x = 1,498,577.10 × 663,128.20
  4. Step 4: Simplify right side
    999,051.40x = 993,748,734,884.22
  5. Step 5: Solve for x
    x = 993,748,734,884.22/999,051.40
  6. Step 6: Final answer
    x = 994,692.30

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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.