Home / 1,281,754.40-1,920,007.20-651,023.60

Finding the Fourth Proportional to 1,281,754.40, 1,920,007.20 and 651,023.60

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Solution

The fourth proportional to 1,281,754.40, 1,920,007.20 and 651,023.60 is: 975,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,754.40 : 1,920,007.20 = 651,023.60 : x
  2. Step 2: Convert to fraction form
    1,281,754.40/1,920,007.20 = 651,023.60/x
  3. Step 3: Cross multiply
    1,281,754.40x = 1,920,007.20 × 651,023.60
  4. Step 4: Simplify right side
    1,281,754.40x = 1,249,969,999,369.92
  5. Step 5: Solve for x
    x = 1,249,969,999,369.92/1,281,754.40
  6. Step 6: Final answer
    x = 975,202.43

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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.