Home / 1,021,064.07-1,409,043.74-639,301.35

Finding the Fourth Proportional to 1,021,064.07, 1,409,043.74 and 639,301.35

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Solution

The fourth proportional to 1,021,064.07, 1,409,043.74 and 639,301.35 is: 882,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,064.07 : 1,409,043.74 = 639,301.35 : x
  2. Step 2: Convert to fraction form
    1,021,064.07/1,409,043.74 = 639,301.35/x
  3. Step 3: Cross multiply
    1,021,064.07x = 1,409,043.74 × 639,301.35
  4. Step 4: Simplify right side
    1,021,064.07x = 900,803,561,994.54
  5. Step 5: Solve for x
    x = 900,803,561,994.54/1,021,064.07
  6. Step 6: Final answer
    x = 882,220.41

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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.