Home / 891,450.48-1,230,026.20-528,806.64

Finding the Fourth Proportional to 891,450.48, 1,230,026.20 and 528,806.64

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Solution

The fourth proportional to 891,450.48, 1,230,026.20 and 528,806.64 is: 729,649.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,450.48 : 1,230,026.20 = 528,806.64 : x
  2. Step 2: Convert to fraction form
    891,450.48/1,230,026.20 = 528,806.64/x
  3. Step 3: Cross multiply
    891,450.48x = 1,230,026.20 × 528,806.64
  4. Step 4: Simplify right side
    891,450.48x = 650,446,021,933.97
  5. Step 5: Solve for x
    x = 650,446,021,933.97/891,450.48
  6. Step 6: Final answer
    x = 729,649.08

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1.5x scale

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.