Home / 708,830.40-1,062,878.40-210,129.60

Finding the Fourth Proportional to 708,830.40, 1,062,878.40 and 210,129.60

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Solution

The fourth proportional to 708,830.40, 1,062,878.40 and 210,129.60 is: 315,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,830.40 : 1,062,878.40 = 210,129.60 : x
  2. Step 2: Convert to fraction form
    708,830.40/1,062,878.40 = 210,129.60/x
  3. Step 3: Cross multiply
    708,830.40x = 1,062,878.40 × 210,129.60
  4. Step 4: Simplify right side
    708,830.40x = 223,342,213,040.64
  5. Step 5: Solve for x
    x = 223,342,213,040.64/708,830.40
  6. Step 6: Final answer
    x = 315,085.55

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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.