Home / 1,390,756.24-2,089,331.76-981,367.54

Finding the Fourth Proportional to 1,390,756.24, 2,089,331.76 and 981,367.54

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Solution

The fourth proportional to 1,390,756.24, 2,089,331.76 and 981,367.54 is: 1,474,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,756.24 : 2,089,331.76 = 981,367.54 : x
  2. Step 2: Convert to fraction form
    1,390,756.24/2,089,331.76 = 981,367.54/x
  3. Step 3: Cross multiply
    1,390,756.24x = 2,089,331.76 × 981,367.54
  4. Step 4: Simplify right side
    1,390,756.24x = 2,050,402,369,555.07
  5. Step 5: Solve for x
    x = 2,050,402,369,555.07/1,390,756.24
  6. Step 6: Final answer
    x = 1,474,307.51

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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.