Home / 902,708.16-1,245,689.28-520,712.16

Finding the Fourth Proportional to 902,708.16, 1,245,689.28 and 520,712.16

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Solution

The fourth proportional to 902,708.16, 1,245,689.28 and 520,712.16 is: 718,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,708.16 : 1,245,689.28 = 520,712.16 : x
  2. Step 2: Convert to fraction form
    902,708.16/1,245,689.28 = 520,712.16/x
  3. Step 3: Cross multiply
    902,708.16x = 1,245,689.28 × 520,712.16
  4. Step 4: Simplify right side
    902,708.16x = 648,645,555,677.65
  5. Step 5: Solve for x
    x = 648,645,555,677.65/902,708.16
  6. Step 6: Final answer
    x = 718,555.10

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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.