Home / 739,285.06-1,020,212.66-399,752.50

Finding the Fourth Proportional to 739,285.06, 1,020,212.66 and 399,752.50

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Solution

The fourth proportional to 739,285.06, 1,020,212.66 and 399,752.50 is: 551,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,285.06 : 1,020,212.66 = 399,752.50 : x
  2. Step 2: Convert to fraction form
    739,285.06/1,020,212.66 = 399,752.50/x
  3. Step 3: Cross multiply
    739,285.06x = 1,020,212.66 × 399,752.50
  4. Step 4: Simplify right side
    739,285.06x = 407,832,561,366.65
  5. Step 5: Solve for x
    x = 407,832,561,366.65/739,285.06
  6. Step 6: Final answer
    x = 551,658.06

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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.