Home / 1,287,710.42-1,928,990.41-775,094.02

Finding the Fourth Proportional to 1,287,710.42, 1,928,990.41 and 775,094.02

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Solution

The fourth proportional to 1,287,710.42, 1,928,990.41 and 775,094.02 is: 1,161,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,710.42 : 1,928,990.41 = 775,094.02 : x
  2. Step 2: Convert to fraction form
    1,287,710.42/1,928,990.41 = 775,094.02/x
  3. Step 3: Cross multiply
    1,287,710.42x = 1,928,990.41 × 775,094.02
  4. Step 4: Simplify right side
    1,287,710.42x = 1,495,148,924,668.14
  5. Step 5: Solve for x
    x = 1,495,148,924,668.14/1,287,710.42
  6. Step 6: Final answer
    x = 1,161,090.96

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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.