Home / 428,413.43-591,210.53-237,439.12

Finding the Fourth Proportional to 428,413.43, 591,210.53 and 237,439.12

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Solution

The fourth proportional to 428,413.43, 591,210.53 and 237,439.12 is: 327,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,413.43 : 591,210.53 = 237,439.12 : x
  2. Step 2: Convert to fraction form
    428,413.43/591,210.53 = 237,439.12/x
  3. Step 3: Cross multiply
    428,413.43x = 591,210.53 × 237,439.12
  4. Step 4: Simplify right side
    428,413.43x = 140,376,507,977.93
  5. Step 5: Solve for x
    x = 140,376,507,977.93/428,413.43
  6. Step 6: Final answer
    x = 327,665.98

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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.