Home / 687,367.03-1,030,746.08-367,441.40

Finding the Fourth Proportional to 687,367.03, 1,030,746.08 and 367,441.40

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Solution

The fourth proportional to 687,367.03, 1,030,746.08 and 367,441.40 is: 550,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,367.03 : 1,030,746.08 = 367,441.40 : x
  2. Step 2: Convert to fraction form
    687,367.03/1,030,746.08 = 367,441.40/x
  3. Step 3: Cross multiply
    687,367.03x = 1,030,746.08 × 367,441.40
  4. Step 4: Simplify right side
    687,367.03x = 378,738,782,679.71
  5. Step 5: Solve for x
    x = 378,738,782,679.71/687,367.03
  6. Step 6: Final answer
    x = 550,999.34

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1.5x scale

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.