Home / 1,258,612.80-1,888,192.62-459,893.16

Finding the Fourth Proportional to 1,258,612.80, 1,888,192.62 and 459,893.16

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Solution

The fourth proportional to 1,258,612.80, 1,888,192.62 and 459,893.16 is: 689,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,612.80 : 1,888,192.62 = 459,893.16 : x
  2. Step 2: Convert to fraction form
    1,258,612.80/1,888,192.62 = 459,893.16/x
  3. Step 3: Cross multiply
    1,258,612.80x = 1,888,192.62 × 459,893.16
  4. Step 4: Simplify right side
    1,258,612.80x = 868,366,870,700.48
  5. Step 5: Solve for x
    x = 868,366,870,700.48/1,258,612.80
  6. Step 6: Final answer
    x = 689,939.65

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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.