Home / 628,862.40-942,429.60-403,531.20

Finding the Fourth Proportional to 628,862.40, 942,429.60 and 403,531.20

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Solution

The fourth proportional to 628,862.40, 942,429.60 and 403,531.20 is: 604,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,862.40 : 942,429.60 = 403,531.20 : x
  2. Step 2: Convert to fraction form
    628,862.40/942,429.60 = 403,531.20/x
  3. Step 3: Cross multiply
    628,862.40x = 942,429.60 × 403,531.20
  4. Step 4: Simplify right side
    628,862.40x = 380,299,747,403.52
  5. Step 5: Solve for x
    x = 380,299,747,403.52/628,862.40
  6. Step 6: Final answer
    x = 604,742.38

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1.5x scale

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.