Home / 1,091,389.51-1,637,072.74-426,535.75

Finding the Fourth Proportional to 1,091,389.51, 1,637,072.74 and 426,535.75

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Solution

The fourth proportional to 1,091,389.51, 1,637,072.74 and 426,535.75 is: 639,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,389.51 : 1,637,072.74 = 426,535.75 : x
  2. Step 2: Convert to fraction form
    1,091,389.51/1,637,072.74 = 426,535.75/x
  3. Step 3: Cross multiply
    1,091,389.51x = 1,637,072.74 × 426,535.75
  4. Step 4: Simplify right side
    1,091,389.51x = 698,270,048,960.46
  5. Step 5: Solve for x
    x = 698,270,048,960.46/1,091,389.51
  6. Step 6: Final answer
    x = 639,799.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.