Home / 770,598.20-1,155,898.92-415,779.32

Finding the Fourth Proportional to 770,598.20, 1,155,898.92 and 415,779.32

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Solution

The fourth proportional to 770,598.20, 1,155,898.92 and 415,779.32 is: 623,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,598.20 : 1,155,898.92 = 415,779.32 : x
  2. Step 2: Convert to fraction form
    770,598.20/1,155,898.92 = 415,779.32/x
  3. Step 3: Cross multiply
    770,598.20x = 1,155,898.92 × 415,779.32
  4. Step 4: Simplify right side
    770,598.20x = 480,598,866,946.33
  5. Step 5: Solve for x
    x = 480,598,866,946.33/770,598.20
  6. Step 6: Final answer
    x = 623,669.85

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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.