Home / 1,284,261.40-1,925,009.70-485,234.20

Finding the Fourth Proportional to 1,284,261.40, 1,925,009.70 and 485,234.20

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Solution

The fourth proportional to 1,284,261.40, 1,925,009.70 and 485,234.20 is: 727,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,261.40 : 1,925,009.70 = 485,234.20 : x
  2. Step 2: Convert to fraction form
    1,284,261.40/1,925,009.70 = 485,234.20/x
  3. Step 3: Cross multiply
    1,284,261.40x = 1,925,009.70 × 485,234.20
  4. Step 4: Simplify right side
    1,284,261.40x = 934,080,541,771.74
  5. Step 5: Solve for x
    x = 934,080,541,771.74/1,284,261.40
  6. Step 6: Final answer
    x = 727,328.99

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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.