Home / 1,007,476.16-1,391,240.72-640,072.04

Finding the Fourth Proportional to 1,007,476.16, 1,391,240.72 and 640,072.04

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Solution

The fourth proportional to 1,007,476.16, 1,391,240.72 and 640,072.04 is: 883,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,476.16 : 1,391,240.72 = 640,072.04 : x
  2. Step 2: Convert to fraction form
    1,007,476.16/1,391,240.72 = 640,072.04/x
  3. Step 3: Cross multiply
    1,007,476.16x = 1,391,240.72 × 640,072.04
  4. Step 4: Simplify right side
    1,007,476.16x = 890,494,285,781.47
  5. Step 5: Solve for x
    x = 890,494,285,781.47/1,007,476.16
  6. Step 6: Final answer
    x = 883,886.21

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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.