Home / 1,112,946.40-1,669,829.20-448,165.60

Finding the Fourth Proportional to 1,112,946.40, 1,669,829.20 and 448,165.60

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Solution

The fourth proportional to 1,112,946.40, 1,669,829.20 and 448,165.60 is: 672,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,946.40 : 1,669,829.20 = 448,165.60 : x
  2. Step 2: Convert to fraction form
    1,112,946.40/1,669,829.20 = 448,165.60/x
  3. Step 3: Cross multiply
    1,112,946.40x = 1,669,829.20 × 448,165.60
  4. Step 4: Simplify right side
    1,112,946.40x = 748,360,005,315.52
  5. Step 5: Solve for x
    x = 748,360,005,315.52/1,112,946.40
  6. Step 6: Final answer
    x = 672,413.34

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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.