Home / 881,632.80-1,323,140.40-408,376.80

Finding the Fourth Proportional to 881,632.80, 1,323,140.40 and 408,376.80

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Solution

The fourth proportional to 881,632.80, 1,323,140.40 and 408,376.80 is: 612,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,632.80 : 1,323,140.40 = 408,376.80 : x
  2. Step 2: Convert to fraction form
    881,632.80/1,323,140.40 = 408,376.80/x
  3. Step 3: Cross multiply
    881,632.80x = 1,323,140.40 × 408,376.80
  4. Step 4: Simplify right side
    881,632.80x = 540,339,842,502.72
  5. Step 5: Solve for x
    x = 540,339,842,502.72/881,632.80
  6. Step 6: Final answer
    x = 612,885.37

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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.