Home / 989,032.53-1,364,791.84-553,392.06

Finding the Fourth Proportional to 989,032.53, 1,364,791.84 and 553,392.06

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Solution

The fourth proportional to 989,032.53, 1,364,791.84 and 553,392.06 is: 763,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,032.53 : 1,364,791.84 = 553,392.06 : x
  2. Step 2: Convert to fraction form
    989,032.53/1,364,791.84 = 553,392.06/x
  3. Step 3: Cross multiply
    989,032.53x = 1,364,791.84 × 553,392.06
  4. Step 4: Simplify right side
    989,032.53x = 755,264,967,808.79
  5. Step 5: Solve for x
    x = 755,264,967,808.79/989,032.53
  6. Step 6: Final answer
    x = 763,640.17

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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.