Home / 1,604,342.40-2,213,164.80-1,087,921.68

Finding the Fourth Proportional to 1,604,342.40, 2,213,164.80 and 1,087,921.68

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Solution

The fourth proportional to 1,604,342.40, 2,213,164.80 and 1,087,921.68 is: 1,500,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604,342.40 : 2,213,164.80 = 1,087,921.68 : x
  2. Step 2: Convert to fraction form
    1,604,342.40/2,213,164.80 = 1,087,921.68/x
  3. Step 3: Cross multiply
    1,604,342.40x = 2,213,164.80 × 1,087,921.68
  4. Step 4: Simplify right side
    1,604,342.40x = 2,407,749,967,332.86
  5. Step 5: Solve for x
    x = 2,407,749,967,332.86/1,604,342.40
  6. Step 6: Final answer
    x = 1,500,770.64

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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.