Home / 1,089,747.95-1,634,605.48-490,285.78

Finding the Fourth Proportional to 1,089,747.95, 1,634,605.48 and 490,285.78

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Solution

The fourth proportional to 1,089,747.95, 1,634,605.48 and 490,285.78 is: 735,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,747.95 : 1,634,605.48 = 490,285.78 : x
  2. Step 2: Convert to fraction form
    1,089,747.95/1,634,605.48 = 490,285.78/x
  3. Step 3: Cross multiply
    1,089,747.95x = 1,634,605.48 × 490,285.78
  4. Step 4: Simplify right side
    1,089,747.95x = 801,423,819,280.42
  5. Step 5: Solve for x
    x = 801,423,819,280.42/1,089,747.95
  6. Step 6: Final answer
    x = 735,421.27

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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.