Home / 788,361.45-1,087,938.50-425,785.20

Finding the Fourth Proportional to 788,361.45, 1,087,938.50 and 425,785.20

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Solution

The fourth proportional to 788,361.45, 1,087,938.50 and 425,785.20 is: 587,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,361.45 : 1,087,938.50 = 425,785.20 : x
  2. Step 2: Convert to fraction form
    788,361.45/1,087,938.50 = 425,785.20/x
  3. Step 3: Cross multiply
    788,361.45x = 1,087,938.50 × 425,785.20
  4. Step 4: Simplify right side
    788,361.45x = 463,228,111,810.20
  5. Step 5: Solve for x
    x = 463,228,111,810.20/788,361.45
  6. Step 6: Final answer
    x = 587,583.41

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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.