Home / 815,106.96-1,124,851.60-509,360.88

Finding the Fourth Proportional to 815,106.96, 1,124,851.60 and 509,360.88

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Solution

The fourth proportional to 815,106.96, 1,124,851.60 and 509,360.88 is: 702,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,106.96 : 1,124,851.60 = 509,360.88 : x
  2. Step 2: Convert to fraction form
    815,106.96/1,124,851.60 = 509,360.88/x
  3. Step 3: Cross multiply
    815,106.96x = 1,124,851.60 × 509,360.88
  4. Step 4: Simplify right side
    815,106.96x = 572,955,400,845.41
  5. Step 5: Solve for x
    x = 572,955,400,845.41/815,106.96
  6. Step 6: Final answer
    x = 702,920.51

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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.