Home / 808,762.80-1,213,403.40-542,823.60

Finding the Fourth Proportional to 808,762.80, 1,213,403.40 and 542,823.60

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Solution

The fourth proportional to 808,762.80, 1,213,403.40 and 542,823.60 is: 814,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,762.80 : 1,213,403.40 = 542,823.60 : x
  2. Step 2: Convert to fraction form
    808,762.80/1,213,403.40 = 542,823.60/x
  3. Step 3: Cross multiply
    808,762.80x = 1,213,403.40 × 542,823.60
  4. Step 4: Simplify right side
    808,762.80x = 658,664,001,840.24
  5. Step 5: Solve for x
    x = 658,664,001,840.24/808,762.80
  6. Step 6: Final answer
    x = 814,409.37

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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.