Home / 695,999.80-1,043,999.70-397,401.40

Finding the Fourth Proportional to 695,999.80, 1,043,999.70 and 397,401.40

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Solution

The fourth proportional to 695,999.80, 1,043,999.70 and 397,401.40 is: 596,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,999.80 : 1,043,999.70 = 397,401.40 : x
  2. Step 2: Convert to fraction form
    695,999.80/1,043,999.70 = 397,401.40/x
  3. Step 3: Cross multiply
    695,999.80x = 1,043,999.70 × 397,401.40
  4. Step 4: Simplify right side
    695,999.80x = 414,886,942,379.58
  5. Step 5: Solve for x
    x = 414,886,942,379.58/695,999.80
  6. Step 6: Final answer
    x = 596,102.10

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1.5x scale

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.