Home / 739,818.50-1,020,573.27-449,352.90

Finding the Fourth Proportional to 739,818.50, 1,020,573.27 and 449,352.90

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Solution

The fourth proportional to 739,818.50, 1,020,573.27 and 449,352.90 is: 619,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,818.50 : 1,020,573.27 = 449,352.90 : x
  2. Step 2: Convert to fraction form
    739,818.50/1,020,573.27 = 449,352.90/x
  3. Step 3: Cross multiply
    739,818.50x = 1,020,573.27 × 449,352.90
  4. Step 4: Simplify right side
    739,818.50x = 458,597,558,536.98
  5. Step 5: Solve for x
    x = 458,597,558,536.98/739,818.50
  6. Step 6: Final answer
    x = 619,878.47

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Double scale
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1.5x scale

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.