Home / 1,404,676.21-1,938,462.12-823,780.90

Finding the Fourth Proportional to 1,404,676.21, 1,938,462.12 and 823,780.90

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Solution

The fourth proportional to 1,404,676.21, 1,938,462.12 and 823,780.90 is: 1,136,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,676.21 : 1,938,462.12 = 823,780.90 : x
  2. Step 2: Convert to fraction form
    1,404,676.21/1,938,462.12 = 823,780.90/x
  3. Step 3: Cross multiply
    1,404,676.21x = 1,938,462.12 × 823,780.90
  4. Step 4: Simplify right side
    1,404,676.21x = 1,596,868,069,829.51
  5. Step 5: Solve for x
    x = 1,596,868,069,829.51/1,404,676.21
  6. Step 6: Final answer
    x = 1,136,822.89

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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.