Home / 370,936.80-556,405.20-356,421.60

Finding the Fourth Proportional to 370,936.80, 556,405.20 and 356,421.60

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Solution

The fourth proportional to 370,936.80, 556,405.20 and 356,421.60 is: 534,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,936.80 : 556,405.20 = 356,421.60 : x
  2. Step 2: Convert to fraction form
    370,936.80/556,405.20 = 356,421.60/x
  3. Step 3: Cross multiply
    370,936.80x = 556,405.20 × 356,421.60
  4. Step 4: Simplify right side
    370,936.80x = 198,314,831,632.32
  5. Step 5: Solve for x
    x = 198,314,831,632.32/370,936.80
  6. Step 6: Final answer
    x = 534,632.40

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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.