Home / 1,215,563.20-1,824,986.40-710,641.60

Finding the Fourth Proportional to 1,215,563.20, 1,824,986.40 and 710,641.60

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Solution

The fourth proportional to 1,215,563.20, 1,824,986.40 and 710,641.60 is: 1,066,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,563.20 : 1,824,986.40 = 710,641.60 : x
  2. Step 2: Convert to fraction form
    1,215,563.20/1,824,986.40 = 710,641.60/x
  3. Step 3: Cross multiply
    1,215,563.20x = 1,824,986.40 × 710,641.60
  4. Step 4: Simplify right side
    1,215,563.20x = 1,296,911,255,274.24
  5. Step 5: Solve for x
    x = 1,296,911,255,274.24/1,215,563.20
  6. Step 6: Final answer
    x = 1,066,922.11

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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.