Home / 1,128,285.56-1,693,236.40-480,316.05

Finding the Fourth Proportional to 1,128,285.56, 1,693,236.40 and 480,316.05

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Solution

The fourth proportional to 1,128,285.56, 1,693,236.40 and 480,316.05 is: 720,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,285.56 : 1,693,236.40 = 480,316.05 : x
  2. Step 2: Convert to fraction form
    1,128,285.56/1,693,236.40 = 480,316.05/x
  3. Step 3: Cross multiply
    1,128,285.56x = 1,693,236.40 × 480,316.05
  4. Step 4: Simplify right side
    1,128,285.56x = 813,288,612,193.43
  5. Step 5: Solve for x
    x = 813,288,612,193.43/1,128,285.56
  6. Step 6: Final answer
    x = 720,818.06

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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.