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Finding the Fourth Proportional to 449,592.60, 620,430.54 and 245,639.14

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Solution

The fourth proportional to 449,592.60, 620,430.54 and 245,639.14 is: 338,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,592.60 : 620,430.54 = 245,639.14 : x
  2. Step 2: Convert to fraction form
    449,592.60/620,430.54 = 245,639.14/x
  3. Step 3: Cross multiply
    449,592.60x = 620,430.54 × 245,639.14
  4. Step 4: Simplify right side
    449,592.60x = 152,402,024,275.34
  5. Step 5: Solve for x
    x = 152,402,024,275.34/449,592.60
  6. Step 6: Final answer
    x = 338,978.05

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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.