Home / 1,553,416.89-2,143,681.80-855,717.22

Finding the Fourth Proportional to 1,553,416.89, 2,143,681.80 and 855,717.22

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Solution

The fourth proportional to 1,553,416.89, 2,143,681.80 and 855,717.22 is: 1,180,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,416.89 : 2,143,681.80 = 855,717.22 : x
  2. Step 2: Convert to fraction form
    1,553,416.89/2,143,681.80 = 855,717.22/x
  3. Step 3: Cross multiply
    1,553,416.89x = 2,143,681.80 × 855,717.22
  4. Step 4: Simplify right side
    1,553,416.89x = 1,834,385,419,742.19
  5. Step 5: Solve for x
    x = 1,834,385,419,742.19/1,553,416.89
  6. Step 6: Final answer
    x = 1,180,871.30

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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.