Home / 1,080,530.40-1,618,657.20-947,560.80

Finding the Fourth Proportional to 1,080,530.40, 1,618,657.20 and 947,560.80

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Solution

The fourth proportional to 1,080,530.40, 1,618,657.20 and 947,560.80 is: 1,419,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,530.40 : 1,618,657.20 = 947,560.80 : x
  2. Step 2: Convert to fraction form
    1,080,530.40/1,618,657.20 = 947,560.80/x
  3. Step 3: Cross multiply
    1,080,530.40x = 1,618,657.20 × 947,560.80
  4. Step 4: Simplify right side
    1,080,530.40x = 1,533,776,111,357.76
  5. Step 5: Solve for x
    x = 1,533,776,111,357.76/1,080,530.40
  6. Step 6: Final answer
    x = 1,419,465.95

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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.