Home / 1,036,122.47-1,555,069.40-405,479.15

Finding the Fourth Proportional to 1,036,122.47, 1,555,069.40 and 405,479.15

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Solution

The fourth proportional to 1,036,122.47, 1,555,069.40 and 405,479.15 is: 608,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,122.47 : 1,555,069.40 = 405,479.15 : x
  2. Step 2: Convert to fraction form
    1,036,122.47/1,555,069.40 = 405,479.15/x
  3. Step 3: Cross multiply
    1,036,122.47x = 1,555,069.40 × 405,479.15
  4. Step 4: Simplify right side
    1,036,122.47x = 630,548,208,700.27
  5. Step 5: Solve for x
    x = 630,548,208,700.27/1,036,122.47
  6. Step 6: Final answer
    x = 608,565.33

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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.