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Finding the Fourth Proportional to 492,768.90, 740,708.55 and 455,444.10

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Solution

The fourth proportional to 492,768.90, 740,708.55 and 455,444.10 is: 684,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,768.90 : 740,708.55 = 455,444.10 : x
  2. Step 2: Convert to fraction form
    492,768.90/740,708.55 = 455,444.10/x
  3. Step 3: Cross multiply
    492,768.90x = 740,708.55 × 455,444.10
  4. Step 4: Simplify right side
    492,768.90x = 337,351,338,917.06
  5. Step 5: Solve for x
    x = 337,351,338,917.06/492,768.90
  6. Step 6: Final answer
    x = 684,603.55

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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.