Home / 1,038,556.68-1,557,999.05-439,520.98

Finding the Fourth Proportional to 1,038,556.68, 1,557,999.05 and 439,520.98

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Solution

The fourth proportional to 1,038,556.68, 1,557,999.05 and 439,520.98 is: 659,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,556.68 : 1,557,999.05 = 439,520.98 : x
  2. Step 2: Convert to fraction form
    1,038,556.68/1,557,999.05 = 439,520.98/x
  3. Step 3: Cross multiply
    1,038,556.68x = 1,557,999.05 × 439,520.98
  4. Step 4: Simplify right side
    1,038,556.68x = 684,773,267,097.46
  5. Step 5: Solve for x
    x = 684,773,267,097.46/1,038,556.68
  6. Step 6: Final answer
    x = 659,350.89

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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.