Home / 1,053,145.60-1,577,385.60-421,734.40

Finding the Fourth Proportional to 1,053,145.60, 1,577,385.60 and 421,734.40

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Solution

The fourth proportional to 1,053,145.60, 1,577,385.60 and 421,734.40 is: 631,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,145.60 : 1,577,385.60 = 421,734.40 : x
  2. Step 2: Convert to fraction form
    1,053,145.60/1,577,385.60 = 421,734.40/x
  3. Step 3: Cross multiply
    1,053,145.60x = 1,577,385.60 × 421,734.40
  4. Step 4: Simplify right side
    1,053,145.60x = 665,237,769,584.64
  5. Step 5: Solve for x
    x = 665,237,769,584.64/1,053,145.60
  6. Step 6: Final answer
    x = 631,667.43

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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.