Home / 691,736.40-1,037,604.60-424,630.80

Finding the Fourth Proportional to 691,736.40, 1,037,604.60 and 424,630.80

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Solution

The fourth proportional to 691,736.40, 1,037,604.60 and 424,630.80 is: 636,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,736.40 : 1,037,604.60 = 424,630.80 : x
  2. Step 2: Convert to fraction form
    691,736.40/1,037,604.60 = 424,630.80/x
  3. Step 3: Cross multiply
    691,736.40x = 1,037,604.60 × 424,630.80
  4. Step 4: Simplify right side
    691,736.40x = 440,598,871,381.68
  5. Step 5: Solve for x
    x = 440,598,871,381.68/691,736.40
  6. Step 6: Final answer
    x = 636,946.20

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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.