Home / 684,494.40-1,026,434.40-263,630.40

Finding the Fourth Proportional to 684,494.40, 1,026,434.40 and 263,630.40

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Solution

The fourth proportional to 684,494.40, 1,026,434.40 and 263,630.40 is: 395,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,494.40 : 1,026,434.40 = 263,630.40 : x
  2. Step 2: Convert to fraction form
    684,494.40/1,026,434.40 = 263,630.40/x
  3. Step 3: Cross multiply
    684,494.40x = 1,026,434.40 × 263,630.40
  4. Step 4: Simplify right side
    684,494.40x = 270,599,311,445.76
  5. Step 5: Solve for x
    x = 270,599,311,445.76/684,494.40
  6. Step 6: Final answer
    x = 395,327.28

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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.