Home / 1,557,921.88-2,337,001.02-420,667.52

Finding the Fourth Proportional to 1,557,921.88, 2,337,001.02 and 420,667.52

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Solution

The fourth proportional to 1,557,921.88, 2,337,001.02 and 420,667.52 is: 631,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,921.88 : 2,337,001.02 = 420,667.52 : x
  2. Step 2: Convert to fraction form
    1,557,921.88/2,337,001.02 = 420,667.52/x
  3. Step 3: Cross multiply
    1,557,921.88x = 2,337,001.02 × 420,667.52
  4. Step 4: Simplify right side
    1,557,921.88x = 983,100,429,776.81
  5. Step 5: Solve for x
    x = 983,100,429,776.81/1,557,921.88
  6. Step 6: Final answer
    x = 631,033.20

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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.