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Finding the Fourth Proportional to 570,301.16, 787,190.94 and 328,745.16

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Solution

The fourth proportional to 570,301.16, 787,190.94 and 328,745.16 is: 453,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,301.16 : 787,190.94 = 328,745.16 : x
  2. Step 2: Convert to fraction form
    570,301.16/787,190.94 = 328,745.16/x
  3. Step 3: Cross multiply
    570,301.16x = 787,190.94 × 328,745.16
  4. Step 4: Simplify right side
    570,301.16x = 258,785,211,520.85
  5. Step 5: Solve for x
    x = 258,785,211,520.85/570,301.16
  6. Step 6: Final answer
    x = 453,769.40

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1.5x scale

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.