Home / 849,846.70-1,271,817.60-778,987.90

Finding the Fourth Proportional to 849,846.70, 1,271,817.60 and 778,987.90

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Solution

The fourth proportional to 849,846.70, 1,271,817.60 and 778,987.90 is: 1,165,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,846.70 : 1,271,817.60 = 778,987.90 : x
  2. Step 2: Convert to fraction form
    849,846.70/1,271,817.60 = 778,987.90/x
  3. Step 3: Cross multiply
    849,846.70x = 1,271,817.60 × 778,987.90
  4. Step 4: Simplify right side
    849,846.70x = 990,730,521,407.04
  5. Step 5: Solve for x
    x = 990,730,521,407.04/849,846.70
  6. Step 6: Final answer
    x = 1,165,775.57

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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.