Home / 1,220,468.16-1,830,252.96-421,544.64

Finding the Fourth Proportional to 1,220,468.16, 1,830,252.96 and 421,544.64

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Solution

The fourth proportional to 1,220,468.16, 1,830,252.96 and 421,544.64 is: 632,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,468.16 : 1,830,252.96 = 421,544.64 : x
  2. Step 2: Convert to fraction form
    1,220,468.16/1,830,252.96 = 421,544.64/x
  3. Step 3: Cross multiply
    1,220,468.16x = 1,830,252.96 × 421,544.64
  4. Step 4: Simplify right side
    1,220,468.16x = 771,533,325,132.13
  5. Step 5: Solve for x
    x = 771,533,325,132.13/1,220,468.16
  6. Step 6: Final answer
    x = 632,161.78

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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.