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Finding the Fourth Proportional to 1,089,978.74, 1,634,491.48 and 549,902.74

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Solution

The fourth proportional to 1,089,978.74, 1,634,491.48 and 549,902.74 is: 824,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,978.74 : 1,634,491.48 = 549,902.74 : x
  2. Step 2: Convert to fraction form
    1,089,978.74/1,634,491.48 = 549,902.74/x
  3. Step 3: Cross multiply
    1,089,978.74x = 1,634,491.48 × 549,902.74
  4. Step 4: Simplify right side
    1,089,978.74x = 898,811,343,358.66
  5. Step 5: Solve for x
    x = 898,811,343,358.66/1,089,978.74
  6. Step 6: Final answer
    x = 824,613.65

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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.