Home / 857,271.80-1,286,121.57-605,045.02

Finding the Fourth Proportional to 857,271.80, 1,286,121.57 and 605,045.02

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Solution

The fourth proportional to 857,271.80, 1,286,121.57 and 605,045.02 is: 907,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,271.80 : 1,286,121.57 = 605,045.02 : x
  2. Step 2: Convert to fraction form
    857,271.80/1,286,121.57 = 605,045.02/x
  3. Step 3: Cross multiply
    857,271.80x = 1,286,121.57 × 605,045.02
  4. Step 4: Simplify right side
    857,271.80x = 778,161,444,612.47
  5. Step 5: Solve for x
    x = 778,161,444,612.47/857,271.80
  6. Step 6: Final answer
    x = 907,718.47

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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.