Home / 1,089,813.20-1,634,729.07-379,840.10

Finding the Fourth Proportional to 1,089,813.20, 1,634,729.07 and 379,840.10

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Solution

The fourth proportional to 1,089,813.20, 1,634,729.07 and 379,840.10 is: 569,763.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,813.20 : 1,634,729.07 = 379,840.10 : x
  2. Step 2: Convert to fraction form
    1,089,813.20/1,634,729.07 = 379,840.10/x
  3. Step 3: Cross multiply
    1,089,813.20x = 1,634,729.07 × 379,840.10
  4. Step 4: Simplify right side
    1,089,813.20x = 620,935,653,421.71
  5. Step 5: Solve for x
    x = 620,935,653,421.71/1,089,813.20
  6. Step 6: Final answer
    x = 569,763.38

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1.5x scale

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.