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Finding the Fourth Proportional to 628,687.68, 942,686.88 and 249,224

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Solution

The fourth proportional to 628,687.68, 942,686.88 and 249,224 is: 373,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,687.68 : 942,686.88 = 249,224 : x
  2. Step 2: Convert to fraction form
    628,687.68/942,686.88 = 249,224/x
  3. Step 3: Cross multiply
    628,687.68x = 942,686.88 × 249,224
  4. Step 4: Simplify right side
    628,687.68x = 234,940,194,981.12
  5. Step 5: Solve for x
    x = 234,940,194,981.12/628,687.68
  6. Step 6: Final answer
    x = 373,699.38

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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.