Home / 1,053,485.60-1,579,645.20-421,685.60

Finding the Fourth Proportional to 1,053,485.60, 1,579,645.20 and 421,685.60

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Solution

The fourth proportional to 1,053,485.60, 1,579,645.20 and 421,685.60 is: 632,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,485.60 : 1,579,645.20 = 421,685.60 : x
  2. Step 2: Convert to fraction form
    1,053,485.60/1,579,645.20 = 421,685.60/x
  3. Step 3: Cross multiply
    1,053,485.60x = 1,579,645.20 × 421,685.60
  4. Step 4: Simplify right side
    1,053,485.60x = 666,113,633,949.12
  5. Step 5: Solve for x
    x = 666,113,633,949.12/1,053,485.60
  6. Step 6: Final answer
    x = 632,294.96

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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.