Home / 1,036,129.47-1,555,079.90-405,486.15

Finding the Fourth Proportional to 1,036,129.47, 1,555,079.90 and 405,486.15

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Solution

The fourth proportional to 1,036,129.47, 1,555,079.90 and 405,486.15 is: 608,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,129.47 : 1,555,079.90 = 405,486.15 : x
  2. Step 2: Convert to fraction form
    1,036,129.47/1,555,079.90 = 405,486.15/x
  3. Step 3: Cross multiply
    1,036,129.47x = 1,555,079.90 × 405,486.15
  4. Step 4: Simplify right side
    1,036,129.47x = 630,563,361,593.39
  5. Step 5: Solve for x
    x = 630,563,361,593.39/1,036,129.47
  6. Step 6: Final answer
    x = 608,575.84

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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.