Home / 993,120.22-1,370,970.39-635,631.58

Finding the Fourth Proportional to 993,120.22, 1,370,970.39 and 635,631.58

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Solution

The fourth proportional to 993,120.22, 1,370,970.39 and 635,631.58 is: 877,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,120.22 : 1,370,970.39 = 635,631.58 : x
  2. Step 2: Convert to fraction form
    993,120.22/1,370,970.39 = 635,631.58/x
  3. Step 3: Cross multiply
    993,120.22x = 1,370,970.39 × 635,631.58
  4. Step 4: Simplify right side
    993,120.22x = 871,432,075,128.92
  5. Step 5: Solve for x
    x = 871,432,075,128.92/993,120.22
  6. Step 6: Final answer
    x = 877,468.87

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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.