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Finding the Fourth Proportional to 388,903.59, 582,448.96 and 375,434.10

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Solution

The fourth proportional to 388,903.59, 582,448.96 and 375,434.10 is: 562,276.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,903.59 : 582,448.96 = 375,434.10 : x
  2. Step 2: Convert to fraction form
    388,903.59/582,448.96 = 375,434.10/x
  3. Step 3: Cross multiply
    388,903.59x = 582,448.96 × 375,434.10
  4. Step 4: Simplify right side
    388,903.59x = 218,671,201,093.54
  5. Step 5: Solve for x
    x = 218,671,201,093.54/388,903.59
  6. Step 6: Final answer
    x = 562,276.12

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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.