Home / 989,640.94-1,365,704.59-536,931.98

Finding the Fourth Proportional to 989,640.94, 1,365,704.59 and 536,931.98

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Solution

The fourth proportional to 989,640.94, 1,365,704.59 and 536,931.98 is: 740,966.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,640.94 : 1,365,704.59 = 536,931.98 : x
  2. Step 2: Convert to fraction form
    989,640.94/1,365,704.59 = 536,931.98/x
  3. Step 3: Cross multiply
    989,640.94x = 1,365,704.59 × 536,931.98
  4. Step 4: Simplify right side
    989,640.94x = 733,290,469,603.79
  5. Step 5: Solve for x
    x = 733,290,469,603.79/989,640.94
  6. Step 6: Final answer
    x = 740,966.18

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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.