Home / 1,820,364.60-2,729,890.80-921,507.60

Finding the Fourth Proportional to 1,820,364.60, 2,729,890.80 and 921,507.60

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Solution

The fourth proportional to 1,820,364.60, 2,729,890.80 and 921,507.60 is: 1,381,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,364.60 : 2,729,890.80 = 921,507.60 : x
  2. Step 2: Convert to fraction form
    1,820,364.60/2,729,890.80 = 921,507.60/x
  3. Step 3: Cross multiply
    1,820,364.60x = 2,729,890.80 × 921,507.60
  4. Step 4: Simplify right side
    1,820,364.60x = 2,515,615,119,370.08
  5. Step 5: Solve for x
    x = 2,515,615,119,370.08/1,820,364.60
  6. Step 6: Final answer
    x = 1,381,929.27

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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.