Home / 1,626,356.43-2,439,654.48-428,270.45

Finding the Fourth Proportional to 1,626,356.43, 2,439,654.48 and 428,270.45

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Solution

The fourth proportional to 1,626,356.43, 2,439,654.48 and 428,270.45 is: 642,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,356.43 : 2,439,654.48 = 428,270.45 : x
  2. Step 2: Convert to fraction form
    1,626,356.43/2,439,654.48 = 428,270.45/x
  3. Step 3: Cross multiply
    1,626,356.43x = 2,439,654.48 × 428,270.45
  4. Step 4: Simplify right side
    1,626,356.43x = 1,044,831,909,795.84
  5. Step 5: Solve for x
    x = 1,044,831,909,795.84/1,626,356.43
  6. Step 6: Final answer
    x = 642,437.22

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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.