Home / 628,882.40-942,459.60-403,551.20

Finding the Fourth Proportional to 628,882.40, 942,459.60 and 403,551.20

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Solution

The fourth proportional to 628,882.40, 942,459.60 and 403,551.20 is: 604,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,882.40 : 942,459.60 = 403,551.20 : x
  2. Step 2: Convert to fraction form
    628,882.40/942,459.60 = 403,551.20/x
  3. Step 3: Cross multiply
    628,882.40x = 942,459.60 × 403,551.20
  4. Step 4: Simplify right side
    628,882.40x = 380,330,702,531.52
  5. Step 5: Solve for x
    x = 380,330,702,531.52/628,882.40
  6. Step 6: Final answer
    x = 604,772.37

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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.