Home / 1,513,666.47-2,088,909.50-869,201.31

Finding the Fourth Proportional to 1,513,666.47, 2,088,909.50 and 869,201.31

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Solution

The fourth proportional to 1,513,666.47, 2,088,909.50 and 869,201.31 is: 1,199,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,666.47 : 2,088,909.50 = 869,201.31 : x
  2. Step 2: Convert to fraction form
    1,513,666.47/2,088,909.50 = 869,201.31/x
  3. Step 3: Cross multiply
    1,513,666.47x = 2,088,909.50 × 869,201.31
  4. Step 4: Simplify right side
    1,513,666.47x = 1,815,682,869,525.44
  5. Step 5: Solve for x
    x = 1,815,682,869,525.44/1,513,666.47
  6. Step 6: Final answer
    x = 1,199,526.39

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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.