Home / 778,629.70-1,168,272.60-423,898.30

Finding the Fourth Proportional to 778,629.70, 1,168,272.60 and 423,898.30

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Solution

The fourth proportional to 778,629.70, 1,168,272.60 and 423,898.30 is: 636,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,629.70 : 1,168,272.60 = 423,898.30 : x
  2. Step 2: Convert to fraction form
    778,629.70/1,168,272.60 = 423,898.30/x
  3. Step 3: Cross multiply
    778,629.70x = 1,168,272.60 × 423,898.30
  4. Step 4: Simplify right side
    778,629.70x = 495,228,769,076.58
  5. Step 5: Solve for x
    x = 495,228,769,076.58/778,629.70
  6. Step 6: Final answer
    x = 636,026.05

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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.