Home / 1,251,928.80-1,877,421.60-453,012.72

Finding the Fourth Proportional to 1,251,928.80, 1,877,421.60 and 453,012.72

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Solution

The fourth proportional to 1,251,928.80, 1,877,421.60 and 453,012.72 is: 679,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,928.80 : 1,877,421.60 = 453,012.72 : x
  2. Step 2: Convert to fraction form
    1,251,928.80/1,877,421.60 = 453,012.72/x
  3. Step 3: Cross multiply
    1,251,928.80x = 1,877,421.60 × 453,012.72
  4. Step 4: Simplify right side
    1,251,928.80x = 850,495,865,602.75
  5. Step 5: Solve for x
    x = 850,495,865,602.75/1,251,928.80
  6. Step 6: Final answer
    x = 679,348.43

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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.