Home / 849,455.70-1,271,231.10-778,596.90

Finding the Fourth Proportional to 849,455.70, 1,271,231.10 and 778,596.90

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Solution

The fourth proportional to 849,455.70, 1,271,231.10 and 778,596.90 is: 1,165,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,455.70 : 1,271,231.10 = 778,596.90 : x
  2. Step 2: Convert to fraction form
    849,455.70/1,271,231.10 = 778,596.90/x
  3. Step 3: Cross multiply
    849,455.70x = 1,271,231.10 × 778,596.90
  4. Step 4: Simplify right side
    849,455.70x = 989,776,593,643.59
  5. Step 5: Solve for x
    x = 989,776,593,643.59/849,455.70
  6. Step 6: Final answer
    x = 1,165,189.18

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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.