Home / 739,480.64-1,020,483.36-399,948.89

Finding the Fourth Proportional to 739,480.64, 1,020,483.36 and 399,948.89

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Solution

The fourth proportional to 739,480.64, 1,020,483.36 and 399,948.89 is: 551,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,480.64 : 1,020,483.36 = 399,948.89 : x
  2. Step 2: Convert to fraction form
    739,480.64/1,020,483.36 = 399,948.89/x
  3. Step 3: Cross multiply
    739,480.64x = 1,020,483.36 × 399,948.89
  4. Step 4: Simplify right side
    739,480.64x = 408,141,187,733.27
  5. Step 5: Solve for x
    x = 408,141,187,733.27/739,480.64
  6. Step 6: Final answer
    x = 551,929.51

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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.