Home / 815,618.84-1,223,440.56-283,156.80

Finding the Fourth Proportional to 815,618.84, 1,223,440.56 and 283,156.80

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Solution

The fourth proportional to 815,618.84, 1,223,440.56 and 283,156.80 is: 424,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,618.84 : 1,223,440.56 = 283,156.80 : x
  2. Step 2: Convert to fraction form
    815,618.84/1,223,440.56 = 283,156.80/x
  3. Step 3: Cross multiply
    815,618.84x = 1,223,440.56 × 283,156.80
  4. Step 4: Simplify right side
    815,618.84x = 346,425,513,959.81
  5. Step 5: Solve for x
    x = 346,425,513,959.81/815,618.84
  6. Step 6: Final answer
    x = 424,739.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.