Home / 722,495.20-1,084,779.60-407,567.20

Finding the Fourth Proportional to 722,495.20, 1,084,779.60 and 407,567.20

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Solution

The fourth proportional to 722,495.20, 1,084,779.60 and 407,567.20 is: 611,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,495.20 : 1,084,779.60 = 407,567.20 : x
  2. Step 2: Convert to fraction form
    722,495.20/1,084,779.60 = 407,567.20/x
  3. Step 3: Cross multiply
    722,495.20x = 1,084,779.60 × 407,567.20
  4. Step 4: Simplify right side
    722,495.20x = 442,120,584,189.12
  5. Step 5: Solve for x
    x = 442,120,584,189.12/722,495.20
  6. Step 6: Final answer
    x = 611,935.67

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1.5x scale

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.