Home / 739,495.53-1,020,503.93-399,963.78

Finding the Fourth Proportional to 739,495.53, 1,020,503.93 and 399,963.78

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Solution

The fourth proportional to 739,495.53, 1,020,503.93 and 399,963.78 is: 551,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,495.53 : 1,020,503.93 = 399,963.78 : x
  2. Step 2: Convert to fraction form
    739,495.53/1,020,503.93 = 399,963.78/x
  3. Step 3: Cross multiply
    739,495.53x = 1,020,503.93 × 399,963.78
  4. Step 4: Simplify right side
    739,495.53x = 408,164,607,347.84
  5. Step 5: Solve for x
    x = 408,164,607,347.84/739,495.53
  6. Step 6: Final answer
    x = 551,950.07

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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.