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Finding the Fourth Proportional to 450,099.36, 620,642.52 and 288,893.52

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Solution

The fourth proportional to 450,099.36, 620,642.52 and 288,893.52 is: 398,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,099.36 : 620,642.52 = 288,893.52 : x
  2. Step 2: Convert to fraction form
    450,099.36/620,642.52 = 288,893.52/x
  3. Step 3: Cross multiply
    450,099.36x = 620,642.52 × 288,893.52
  4. Step 4: Simplify right side
    450,099.36x = 179,299,602,264.47
  5. Step 5: Solve for x
    x = 179,299,602,264.47/450,099.36
  6. Step 6: Final answer
    x = 398,355.60

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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.