Home / 1,095,030.80-1,641,768.60-420,851.60

Finding the Fourth Proportional to 1,095,030.80, 1,641,768.60 and 420,851.60

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Solution

The fourth proportional to 1,095,030.80, 1,641,768.60 and 420,851.60 is: 630,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,030.80 : 1,641,768.60 = 420,851.60 : x
  2. Step 2: Convert to fraction form
    1,095,030.80/1,641,768.60 = 420,851.60/x
  3. Step 3: Cross multiply
    1,095,030.80x = 1,641,768.60 × 420,851.60
  4. Step 4: Simplify right side
    1,095,030.80x = 690,940,942,139.76
  5. Step 5: Solve for x
    x = 690,940,942,139.76/1,095,030.80
  6. Step 6: Final answer
    x = 630,978.55

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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.