Home / 1,021,306.65-1,409,478.09-730,945.47

Finding the Fourth Proportional to 1,021,306.65, 1,409,478.09 and 730,945.47

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Solution

The fourth proportional to 1,021,306.65, 1,409,478.09 and 730,945.47 is: 1,008,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,306.65 : 1,409,478.09 = 730,945.47 : x
  2. Step 2: Convert to fraction form
    1,021,306.65/1,409,478.09 = 730,945.47/x
  3. Step 3: Cross multiply
    1,021,306.65x = 1,409,478.09 × 730,945.47
  4. Step 4: Simplify right side
    1,021,306.65x = 1,030,251,624,949.75
  5. Step 5: Solve for x
    x = 1,030,251,624,949.75/1,021,306.65
  6. Step 6: Final answer
    x = 1,008,758.36

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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.