Home / 830,458.85-1,146,033.18-448,485.60

Finding the Fourth Proportional to 830,458.85, 1,146,033.18 and 448,485.60

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Solution

The fourth proportional to 830,458.85, 1,146,033.18 and 448,485.60 is: 618,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,458.85 : 1,146,033.18 = 448,485.60 : x
  2. Step 2: Convert to fraction form
    830,458.85/1,146,033.18 = 448,485.60/x
  3. Step 3: Cross multiply
    830,458.85x = 1,146,033.18 × 448,485.60
  4. Step 4: Simplify right side
    830,458.85x = 513,979,378,352.21
  5. Step 5: Solve for x
    x = 513,979,378,352.21/830,458.85
  6. Step 6: Final answer
    x = 618,910.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.