Home / 830,519.70-1,245,779.55-451,621.95

Finding the Fourth Proportional to 830,519.70, 1,245,779.55 and 451,621.95

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Solution

The fourth proportional to 830,519.70, 1,245,779.55 and 451,621.95 is: 677,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,519.70 : 1,245,779.55 = 451,621.95 : x
  2. Step 2: Convert to fraction form
    830,519.70/1,245,779.55 = 451,621.95/x
  3. Step 3: Cross multiply
    830,519.70x = 1,245,779.55 × 451,621.95
  4. Step 4: Simplify right side
    830,519.70x = 562,621,389,641.12
  5. Step 5: Solve for x
    x = 562,621,389,641.12/830,519.70
  6. Step 6: Final answer
    x = 677,432.93

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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.