Home / 691,101.03-1,036,792.48-391,715.31

Finding the Fourth Proportional to 691,101.03, 1,036,792.48 and 391,715.31

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Solution

The fourth proportional to 691,101.03, 1,036,792.48 and 391,715.31 is: 587,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,101.03 : 1,036,792.48 = 391,715.31 : x
  2. Step 2: Convert to fraction form
    691,101.03/1,036,792.48 = 391,715.31/x
  3. Step 3: Cross multiply
    691,101.03x = 1,036,792.48 × 391,715.31
  4. Step 4: Simplify right side
    691,101.03x = 406,127,487,708.87
  5. Step 5: Solve for x
    x = 406,127,487,708.87/691,101.03
  6. Step 6: Final answer
    x = 587,652.85

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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.