Home / 857,111.68-1,285,708.53-707,073.76

Finding the Fourth Proportional to 857,111.68, 1,285,708.53 and 707,073.76

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Solution

The fourth proportional to 857,111.68, 1,285,708.53 and 707,073.76 is: 1,060,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,111.68 : 1,285,708.53 = 707,073.76 : x
  2. Step 2: Convert to fraction form
    857,111.68/1,285,708.53 = 707,073.76/x
  3. Step 3: Cross multiply
    857,111.68x = 1,285,708.53 × 707,073.76
  4. Step 4: Simplify right side
    857,111.68x = 909,090,761,035.80
  5. Step 5: Solve for x
    x = 909,090,761,035.80/857,111.68
  6. Step 6: Final answer
    x = 1,060,644.47

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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.