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Finding the Fourth Proportional to 898,992, 1,240,608.96 and 496,584

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Solution

The fourth proportional to 898,992, 1,240,608.96 and 496,584 is: 685,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,992 : 1,240,608.96 = 496,584 : x
  2. Step 2: Convert to fraction form
    898,992/1,240,608.96 = 496,584/x
  3. Step 3: Cross multiply
    898,992x = 1,240,608.96 × 496,584
  4. Step 4: Simplify right side
    898,992x = 616,066,559,792.64
  5. Step 5: Solve for x
    x = 616,066,559,792.64/898,992
  6. Step 6: Final answer
    x = 685,285.92

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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.