Home / 980,779.86-1,353,589.60-572,983.64

Finding the Fourth Proportional to 980,779.86, 1,353,589.60 and 572,983.64

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Solution

The fourth proportional to 980,779.86, 1,353,589.60 and 572,983.64 is: 790,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,779.86 : 1,353,589.60 = 572,983.64 : x
  2. Step 2: Convert to fraction form
    980,779.86/1,353,589.60 = 572,983.64/x
  3. Step 3: Cross multiply
    980,779.86x = 1,353,589.60 × 572,983.64
  4. Step 4: Simplify right side
    980,779.86x = 775,584,696,074.14
  5. Step 5: Solve for x
    x = 775,584,696,074.14/980,779.86
  6. Step 6: Final answer
    x = 790,783.67

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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.