Home / 810,477.30-1,214,629.17-630,779.70

Finding the Fourth Proportional to 810,477.30, 1,214,629.17 and 630,779.70

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Solution

The fourth proportional to 810,477.30, 1,214,629.17 and 630,779.70 is: 945,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,477.30 : 1,214,629.17 = 630,779.70 : x
  2. Step 2: Convert to fraction form
    810,477.30/1,214,629.17 = 630,779.70/x
  3. Step 3: Cross multiply
    810,477.30x = 1,214,629.17 × 630,779.70
  4. Step 4: Simplify right side
    810,477.30x = 766,163,423,463.85
  5. Step 5: Solve for x
    x = 766,163,423,463.85/810,477.30
  6. Step 6: Final answer
    x = 945,323.73

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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.