Home / 1,613,279.01-2,421,413.90-815,121.53

Finding the Fourth Proportional to 1,613,279.01, 2,421,413.90 and 815,121.53

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Solution

The fourth proportional to 1,613,279.01, 2,421,413.90 and 815,121.53 is: 1,223,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,279.01 : 2,421,413.90 = 815,121.53 : x
  2. Step 2: Convert to fraction form
    1,613,279.01/2,421,413.90 = 815,121.53/x
  3. Step 3: Cross multiply
    1,613,279.01x = 2,421,413.90 × 815,121.53
  4. Step 4: Simplify right side
    1,613,279.01x = 1,973,746,586,748.59
  5. Step 5: Solve for x
    x = 1,973,746,586,748.59/1,613,279.01
  6. Step 6: Final answer
    x = 1,223,437.84

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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.