Home / 857,111.43-1,285,708.16-707,073.51

Finding the Fourth Proportional to 857,111.43, 1,285,708.16 and 707,073.51

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Solution

The fourth proportional to 857,111.43, 1,285,708.16 and 707,073.51 is: 1,060,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,111.43 : 1,285,708.16 = 707,073.51 : x
  2. Step 2: Convert to fraction form
    857,111.43/1,285,708.16 = 707,073.51/x
  3. Step 3: Cross multiply
    857,111.43x = 1,285,708.16 × 707,073.51
  4. Step 4: Simplify right side
    857,111.43x = 909,090,177,991.47
  5. Step 5: Solve for x
    x = 909,090,177,991.47/857,111.43
  6. Step 6: Final answer
    x = 1,060,644.10

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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.