Home / 1,139,351.40-1,572,302.16-655,740

Finding the Fourth Proportional to 1,139,351.40, 1,572,302.16 and 655,740

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Solution

The fourth proportional to 1,139,351.40, 1,572,302.16 and 655,740 is: 904,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,351.40 : 1,572,302.16 = 655,740 : x
  2. Step 2: Convert to fraction form
    1,139,351.40/1,572,302.16 = 655,740/x
  3. Step 3: Cross multiply
    1,139,351.40x = 1,572,302.16 × 655,740
  4. Step 4: Simplify right side
    1,139,351.40x = 1,031,021,418,398.40
  5. Step 5: Solve for x
    x = 1,031,021,418,398.40/1,139,351.40
  6. Step 6: Final answer
    x = 904,919.60

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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.