Home / 842,859.40-1,264,289.10-488,784.10

Finding the Fourth Proportional to 842,859.40, 1,264,289.10 and 488,784.10

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Solution

The fourth proportional to 842,859.40, 1,264,289.10 and 488,784.10 is: 733,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,859.40 : 1,264,289.10 = 488,784.10 : x
  2. Step 2: Convert to fraction form
    842,859.40/1,264,289.10 = 488,784.10/x
  3. Step 3: Cross multiply
    842,859.40x = 1,264,289.10 × 488,784.10
  4. Step 4: Simplify right side
    842,859.40x = 617,964,409,883.31
  5. Step 5: Solve for x
    x = 617,964,409,883.31/842,859.40
  6. Step 6: Final answer
    x = 733,176.15

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Double scale
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Similar ratio
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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.