Home / 739,484.57-1,020,488.81-399,952.82

Finding the Fourth Proportional to 739,484.57, 1,020,488.81 and 399,952.82

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Solution

The fourth proportional to 739,484.57, 1,020,488.81 and 399,952.82 is: 551,934.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,484.57 : 1,020,488.81 = 399,952.82 : x
  2. Step 2: Convert to fraction form
    739,484.57/1,020,488.81 = 399,952.82/x
  3. Step 3: Cross multiply
    739,484.57x = 1,020,488.81 × 399,952.82
  4. Step 4: Simplify right side
    739,484.57x = 408,147,377,889.40
  5. Step 5: Solve for x
    x = 408,147,377,889.40/739,484.57
  6. Step 6: Final answer
    x = 551,934.95

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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.