Home / 750,779.53-1,036,078.85-406,619.54

Finding the Fourth Proportional to 750,779.53, 1,036,078.85 and 406,619.54

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Solution

The fourth proportional to 750,779.53, 1,036,078.85 and 406,619.54 is: 561,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,779.53 : 1,036,078.85 = 406,619.54 : x
  2. Step 2: Convert to fraction form
    750,779.53/1,036,078.85 = 406,619.54/x
  3. Step 3: Cross multiply
    750,779.53x = 1,036,078.85 × 406,619.54
  4. Step 4: Simplify right side
    750,779.53x = 421,289,908,652.89
  5. Step 5: Solve for x
    x = 421,289,908,652.89/750,779.53
  6. Step 6: Final answer
    x = 561,136.65

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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.