Home / 874,580.40-1,207,006.80-511,982.40

Finding the Fourth Proportional to 874,580.40, 1,207,006.80 and 511,982.40

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Solution

The fourth proportional to 874,580.40, 1,207,006.80 and 511,982.40 is: 706,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,580.40 : 1,207,006.80 = 511,982.40 : x
  2. Step 2: Convert to fraction form
    874,580.40/1,207,006.80 = 511,982.40/x
  3. Step 3: Cross multiply
    874,580.40x = 1,207,006.80 × 511,982.40
  4. Step 4: Simplify right side
    874,580.40x = 617,966,238,280.32
  5. Step 5: Solve for x
    x = 617,966,238,280.32/874,580.40
  6. Step 6: Final answer
    x = 706,585.97

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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.