Home / 620,363.80-856,322.02-375,361.19

Finding the Fourth Proportional to 620,363.80, 856,322.02 and 375,361.19

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Solution

The fourth proportional to 620,363.80, 856,322.02 and 375,361.19 is: 518,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,363.80 : 856,322.02 = 375,361.19 : x
  2. Step 2: Convert to fraction form
    620,363.80/856,322.02 = 375,361.19/x
  3. Step 3: Cross multiply
    620,363.80x = 856,322.02 × 375,361.19
  4. Step 4: Simplify right side
    620,363.80x = 321,430,056,666.01
  5. Step 5: Solve for x
    x = 321,430,056,666.01/620,363.80
  6. Step 6: Final answer
    x = 518,131.55

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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.