Home / 828,429.60-1,143,219.36-460,892.64

Finding the Fourth Proportional to 828,429.60, 1,143,219.36 and 460,892.64

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Solution

The fourth proportional to 828,429.60, 1,143,219.36 and 460,892.64 is: 636,024.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,429.60 : 1,143,219.36 = 460,892.64 : x
  2. Step 2: Convert to fraction form
    828,429.60/1,143,219.36 = 460,892.64/x
  3. Step 3: Cross multiply
    828,429.60x = 1,143,219.36 × 460,892.64
  4. Step 4: Simplify right side
    828,429.60x = 526,901,388,929.51
  5. Step 5: Solve for x
    x = 526,901,388,929.51/828,429.60
  6. Step 6: Final answer
    x = 636,024.34

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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.