Home / 828,664.39-1,142,908.84-538,369.36

Finding the Fourth Proportional to 828,664.39, 1,142,908.84 and 538,369.36

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Solution

The fourth proportional to 828,664.39, 1,142,908.84 and 538,369.36 is: 742,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,664.39 : 1,142,908.84 = 538,369.36 : x
  2. Step 2: Convert to fraction form
    828,664.39/1,142,908.84 = 538,369.36/x
  3. Step 3: Cross multiply
    828,664.39x = 1,142,908.84 × 538,369.36
  4. Step 4: Simplify right side
    828,664.39x = 615,307,096,525.95
  5. Step 5: Solve for x
    x = 615,307,096,525.95/828,664.39
  6. Step 6: Final answer
    x = 742,528.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.