Home / 1,089,499.40-1,634,030.40-520,879.40

Finding the Fourth Proportional to 1,089,499.40, 1,634,030.40 and 520,879.40

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Solution

The fourth proportional to 1,089,499.40, 1,634,030.40 and 520,879.40 is: 781,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,499.40 : 1,634,030.40 = 520,879.40 : x
  2. Step 2: Convert to fraction form
    1,089,499.40/1,634,030.40 = 520,879.40/x
  3. Step 3: Cross multiply
    1,089,499.40x = 1,634,030.40 × 520,879.40
  4. Step 4: Simplify right side
    1,089,499.40x = 851,132,774,333.76
  5. Step 5: Solve for x
    x = 851,132,774,333.76/1,089,499.40
  6. Step 6: Final answer
    x = 781,214.54

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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.