Home / 876,956.16-1,315,840.20-477,120.60

Finding the Fourth Proportional to 876,956.16, 1,315,840.20 and 477,120.60

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Solution

The fourth proportional to 876,956.16, 1,315,840.20 and 477,120.60 is: 715,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,956.16 : 1,315,840.20 = 477,120.60 : x
  2. Step 2: Convert to fraction form
    876,956.16/1,315,840.20 = 477,120.60/x
  3. Step 3: Cross multiply
    876,956.16x = 1,315,840.20 × 477,120.60
  4. Step 4: Simplify right side
    876,956.16x = 627,814,465,728.12
  5. Step 5: Solve for x
    x = 627,814,465,728.12/876,956.16
  6. Step 6: Final answer
    x = 715,901.77

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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.