Home / 872,135.40-1,308,246.30-452,231.40

Finding the Fourth Proportional to 872,135.40, 1,308,246.30 and 452,231.40

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Solution

The fourth proportional to 872,135.40, 1,308,246.30 and 452,231.40 is: 678,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,135.40 : 1,308,246.30 = 452,231.40 : x
  2. Step 2: Convert to fraction form
    872,135.40/1,308,246.30 = 452,231.40/x
  3. Step 3: Cross multiply
    872,135.40x = 1,308,246.30 × 452,231.40
  4. Step 4: Simplify right side
    872,135.40x = 591,630,055,793.82
  5. Step 5: Solve for x
    x = 591,630,055,793.82/872,135.40
  6. Step 6: Final answer
    x = 678,369.50

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Double scale
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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.