Home / 858,056.70-1,287,085.05-725,196.45

Finding the Fourth Proportional to 858,056.70, 1,287,085.05 and 725,196.45

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Solution

The fourth proportional to 858,056.70, 1,287,085.05 and 725,196.45 is: 1,087,794.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,056.70 : 1,287,085.05 = 725,196.45 : x
  2. Step 2: Convert to fraction form
    858,056.70/1,287,085.05 = 725,196.45/x
  3. Step 3: Cross multiply
    858,056.70x = 1,287,085.05 × 725,196.45
  4. Step 4: Simplify right side
    858,056.70x = 933,389,509,108.07
  5. Step 5: Solve for x
    x = 933,389,509,108.07/858,056.70
  6. Step 6: Final answer
    x = 1,087,794.68

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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.