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Finding the Fourth Proportional to 570,718.43, 856,134.26 and 210,983.53

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Solution

The fourth proportional to 570,718.43, 856,134.26 and 210,983.53 is: 316,496.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,718.43 : 856,134.26 = 210,983.53 : x
  2. Step 2: Convert to fraction form
    570,718.43/856,134.26 = 210,983.53/x
  3. Step 3: Cross multiply
    570,718.43x = 856,134.26 × 210,983.53
  4. Step 4: Simplify right side
    570,718.43x = 180,630,228,328.74
  5. Step 5: Solve for x
    x = 180,630,228,328.74/570,718.43
  6. Step 6: Final answer
    x = 316,496.22

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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.