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Finding the Fourth Proportional to 754,907, 1,041,428.36 and 448,809.68

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Solution

The fourth proportional to 754,907, 1,041,428.36 and 448,809.68 is: 619,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,907 : 1,041,428.36 = 448,809.68 : x
  2. Step 2: Convert to fraction form
    754,907/1,041,428.36 = 448,809.68/x
  3. Step 3: Cross multiply
    754,907x = 1,041,428.36 × 448,809.68
  4. Step 4: Simplify right side
    754,907x = 467,403,128,994.53
  5. Step 5: Solve for x
    x = 467,403,128,994.53/754,907
  6. Step 6: Final answer
    x = 619,153.26

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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.