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Finding the Fourth Proportional to 570,874.04, 856,431.29 and 215,880.20

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Solution

The fourth proportional to 570,874.04, 856,431.29 and 215,880.20 is: 323,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,874.04 : 856,431.29 = 215,880.20 : x
  2. Step 2: Convert to fraction form
    570,874.04/856,431.29 = 215,880.20/x
  3. Step 3: Cross multiply
    570,874.04x = 856,431.29 × 215,880.20
  4. Step 4: Simplify right side
    570,874.04x = 184,886,554,429.00
  5. Step 5: Solve for x
    x = 184,886,554,429.00/570,874.04
  6. Step 6: Final answer
    x = 323,865.76

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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.