Home / 642,612.60-963,746.10-268,558.20

Finding the Fourth Proportional to 642,612.60, 963,746.10 and 268,558.20

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Solution

The fourth proportional to 642,612.60, 963,746.10 and 268,558.20 is: 402,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,612.60 : 963,746.10 = 268,558.20 : x
  2. Step 2: Convert to fraction form
    642,612.60/963,746.10 = 268,558.20/x
  3. Step 3: Cross multiply
    642,612.60x = 963,746.10 × 268,558.20
  4. Step 4: Simplify right side
    642,612.60x = 258,821,917,873.02
  5. Step 5: Solve for x
    x = 258,821,917,873.02/642,612.60
  6. Step 6: Final answer
    x = 402,765.08

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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.