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Finding the Fourth Proportional to 570,125.55, 786,856.73 and 328,361.07

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Solution

The fourth proportional to 570,125.55, 786,856.73 and 328,361.07 is: 453,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,125.55 : 786,856.73 = 328,361.07 : x
  2. Step 2: Convert to fraction form
    570,125.55/786,856.73 = 328,361.07/x
  3. Step 3: Cross multiply
    570,125.55x = 786,856.73 × 328,361.07
  4. Step 4: Simplify right side
    570,125.55x = 258,373,116,157.70
  5. Step 5: Solve for x
    x = 258,373,116,157.70/570,125.55
  6. Step 6: Final answer
    x = 453,186.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.