Home / 847,400.31-1,271,184.18-278,550.67

Finding the Fourth Proportional to 847,400.31, 1,271,184.18 and 278,550.67

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Solution

The fourth proportional to 847,400.31, 1,271,184.18 and 278,550.67 is: 417,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,400.31 : 1,271,184.18 = 278,550.67 : x
  2. Step 2: Convert to fraction form
    847,400.31/1,271,184.18 = 278,550.67/x
  3. Step 3: Cross multiply
    847,400.31x = 1,271,184.18 × 278,550.67
  4. Step 4: Simplify right side
    847,400.31x = 354,089,208,335.40
  5. Step 5: Solve for x
    x = 354,089,208,335.40/847,400.31
  6. Step 6: Final answer
    x = 417,853.53

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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.