Home / 684,474.40-1,026,781.98-258,369.13

Finding the Fourth Proportional to 684,474.40, 1,026,781.98 and 258,369.13

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Solution

The fourth proportional to 684,474.40, 1,026,781.98 and 258,369.13 is: 387,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,474.40 : 1,026,781.98 = 258,369.13 : x
  2. Step 2: Convert to fraction form
    684,474.40/1,026,781.98 = 258,369.13/x
  3. Step 3: Cross multiply
    684,474.40x = 1,026,781.98 × 258,369.13
  4. Step 4: Simplify right side
    684,474.40x = 265,288,766,872.28
  5. Step 5: Solve for x
    x = 265,288,766,872.28/684,474.40
  6. Step 6: Final answer
    x = 387,580.26

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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.