Home / 1,007,121.38-1,389,827.50-554,412.38

Finding the Fourth Proportional to 1,007,121.38, 1,389,827.50 and 554,412.38

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Solution

The fourth proportional to 1,007,121.38, 1,389,827.50 and 554,412.38 is: 765,089.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,121.38 : 1,389,827.50 = 554,412.38 : x
  2. Step 2: Convert to fraction form
    1,007,121.38/1,389,827.50 = 554,412.38/x
  3. Step 3: Cross multiply
    1,007,121.38x = 1,389,827.50 × 554,412.38
  4. Step 4: Simplify right side
    1,007,121.38x = 770,537,563,729.28
  5. Step 5: Solve for x
    x = 770,537,563,729.28/1,007,121.38
  6. Step 6: Final answer
    x = 765,089.08

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Double scale
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1.5x scale

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.