Home / 828,485.75-1,143,299.48-465,909.50

Finding the Fourth Proportional to 828,485.75, 1,143,299.48 and 465,909.50

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Solution

The fourth proportional to 828,485.75, 1,143,299.48 and 465,909.50 is: 642,949.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,485.75 : 1,143,299.48 = 465,909.50 : x
  2. Step 2: Convert to fraction form
    828,485.75/1,143,299.48 = 465,909.50/x
  3. Step 3: Cross multiply
    828,485.75x = 1,143,299.48 × 465,909.50
  4. Step 4: Simplify right side
    828,485.75x = 532,674,089,605.76
  5. Step 5: Solve for x
    x = 532,674,089,605.76/828,485.75
  6. Step 6: Final answer
    x = 642,949.00

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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.