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Finding the Fourth Proportional to 898,995, 1,240,613.10 and 496,587

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Solution

The fourth proportional to 898,995, 1,240,613.10 and 496,587 is: 685,290.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,995 : 1,240,613.10 = 496,587 : x
  2. Step 2: Convert to fraction form
    898,995/1,240,613.10 = 496,587/x
  3. Step 3: Cross multiply
    898,995x = 1,240,613.10 × 496,587
  4. Step 4: Simplify right side
    898,995x = 616,072,337,489.70
  5. Step 5: Solve for x
    x = 616,072,337,489.70/898,995
  6. Step 6: Final answer
    x = 685,290.06

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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.