Home / 448,990.31-620,281.39-294,308.75

Finding the Fourth Proportional to 448,990.31, 620,281.39 and 294,308.75

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Solution

The fourth proportional to 448,990.31, 620,281.39 and 294,308.75 is: 406,588.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,990.31 : 620,281.39 = 294,308.75 : x
  2. Step 2: Convert to fraction form
    448,990.31/620,281.39 = 294,308.75/x
  3. Step 3: Cross multiply
    448,990.31x = 620,281.39 × 294,308.75
  4. Step 4: Simplify right side
    448,990.31x = 182,554,240,539.16
  5. Step 5: Solve for x
    x = 182,554,240,539.16/448,990.31
  6. Step 6: Final answer
    x = 406,588.38

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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.