Home / 764,948.80-1,145,090.40-448,465.60

Finding the Fourth Proportional to 764,948.80, 1,145,090.40 and 448,465.60

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Solution

The fourth proportional to 764,948.80, 1,145,090.40 and 448,465.60 is: 671,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,948.80 : 1,145,090.40 = 448,465.60 : x
  2. Step 2: Convert to fraction form
    764,948.80/1,145,090.40 = 448,465.60/x
  3. Step 3: Cross multiply
    764,948.80x = 1,145,090.40 × 448,465.60
  4. Step 4: Simplify right side
    764,948.80x = 513,533,653,290.24
  5. Step 5: Solve for x
    x = 513,533,653,290.24/764,948.80
  6. Step 6: Final answer
    x = 671,330.75

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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.