Home / 930,020.06-1,391,404.32-815,256.83

Finding the Fourth Proportional to 930,020.06, 1,391,404.32 and 815,256.83

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Solution

The fourth proportional to 930,020.06, 1,391,404.32 and 815,256.83 is: 1,219,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,020.06 : 1,391,404.32 = 815,256.83 : x
  2. Step 2: Convert to fraction form
    930,020.06/1,391,404.32 = 815,256.83/x
  3. Step 3: Cross multiply
    930,020.06x = 1,391,404.32 × 815,256.83
  4. Step 4: Simplify right side
    930,020.06x = 1,134,351,875,171.51
  5. Step 5: Solve for x
    x = 1,134,351,875,171.51/930,020.06
  6. Step 6: Final answer
    x = 1,219,706.89

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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.