Home / 1,418,538.80-2,128,002.60-471,810.80

Finding the Fourth Proportional to 1,418,538.80, 2,128,002.60 and 471,810.80

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Solution

The fourth proportional to 1,418,538.80, 2,128,002.60 and 471,810.80 is: 707,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,538.80 : 2,128,002.60 = 471,810.80 : x
  2. Step 2: Convert to fraction form
    1,418,538.80/2,128,002.60 = 471,810.80/x
  3. Step 3: Cross multiply
    1,418,538.80x = 2,128,002.60 × 471,810.80
  4. Step 4: Simplify right side
    1,418,538.80x = 1,004,014,609,108.08
  5. Step 5: Solve for x
    x = 1,004,014,609,108.08/1,418,538.80
  6. Step 6: Final answer
    x = 707,780.86

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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.