Home / 1,240,214.80-1,860,322.20-398,851.60

Finding the Fourth Proportional to 1,240,214.80, 1,860,322.20 and 398,851.60

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Solution

The fourth proportional to 1,240,214.80, 1,860,322.20 and 398,851.60 is: 598,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,214.80 : 1,860,322.20 = 398,851.60 : x
  2. Step 2: Convert to fraction form
    1,240,214.80/1,860,322.20 = 398,851.60/x
  3. Step 3: Cross multiply
    1,240,214.80x = 1,860,322.20 × 398,851.60
  4. Step 4: Simplify right side
    1,240,214.80x = 741,992,485,985.52
  5. Step 5: Solve for x
    x = 741,992,485,985.52/1,240,214.80
  6. Step 6: Final answer
    x = 598,277.40

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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.