Home / 905,810.36-1,250,020.88-518,631.71

Finding the Fourth Proportional to 905,810.36, 1,250,020.88 and 518,631.71

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Solution

The fourth proportional to 905,810.36, 1,250,020.88 and 518,631.71 is: 715,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,810.36 : 1,250,020.88 = 518,631.71 : x
  2. Step 2: Convert to fraction form
    905,810.36/1,250,020.88 = 518,631.71/x
  3. Step 3: Cross multiply
    905,810.36x = 1,250,020.88 × 518,631.71
  4. Step 4: Simplify right side
    905,810.36x = 648,300,470,951.74
  5. Step 5: Solve for x
    x = 648,300,470,951.74/905,810.36
  6. Step 6: Final answer
    x = 715,713.24

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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.