Home / 912,222.40-1,368,333.60-439,830.40

Finding the Fourth Proportional to 912,222.40, 1,368,333.60 and 439,830.40

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Solution

The fourth proportional to 912,222.40, 1,368,333.60 and 439,830.40 is: 659,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,222.40 : 1,368,333.60 = 439,830.40 : x
  2. Step 2: Convert to fraction form
    912,222.40/1,368,333.60 = 439,830.40/x
  3. Step 3: Cross multiply
    912,222.40x = 1,368,333.60 × 439,830.40
  4. Step 4: Simplify right side
    912,222.40x = 601,834,714,621.44
  5. Step 5: Solve for x
    x = 601,834,714,621.44/912,222.40
  6. Step 6: Final answer
    x = 659,745.60

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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.