Home / 815,002.98-1,124,708.43-509,256.79

Finding the Fourth Proportional to 815,002.98, 1,124,708.43 and 509,256.79

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Solution

The fourth proportional to 815,002.98, 1,124,708.43 and 509,256.79 is: 702,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,002.98 : 1,124,708.43 = 509,256.79 : x
  2. Step 2: Convert to fraction form
    815,002.98/1,124,708.43 = 509,256.79/x
  3. Step 3: Cross multiply
    815,002.98x = 1,124,708.43 × 509,256.79
  4. Step 4: Simplify right side
    815,002.98x = 572,765,405,860.06
  5. Step 5: Solve for x
    x = 572,765,405,860.06/815,002.98
  6. Step 6: Final answer
    x = 702,777.07

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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.