Home / 739,810.62-1,020,938.61-400,278.87

Finding the Fourth Proportional to 739,810.62, 1,020,938.61 and 400,278.87

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Solution

The fourth proportional to 739,810.62, 1,020,938.61 and 400,278.87 is: 552,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,810.62 : 1,020,938.61 = 400,278.87 : x
  2. Step 2: Convert to fraction form
    739,810.62/1,020,938.61 = 400,278.87/x
  3. Step 3: Cross multiply
    739,810.62x = 1,020,938.61 × 400,278.87
  4. Step 4: Simplify right side
    739,810.62x = 408,660,153,150.17
  5. Step 5: Solve for x
    x = 408,660,153,150.17/739,810.62
  6. Step 6: Final answer
    x = 552,384.82

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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.