Home / 900,039.87-1,349,859.60-260,203.86

Finding the Fourth Proportional to 900,039.87, 1,349,859.60 and 260,203.86

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Solution

The fourth proportional to 900,039.87, 1,349,859.60 and 260,203.86 is: 390,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,039.87 : 1,349,859.60 = 260,203.86 : x
  2. Step 2: Convert to fraction form
    900,039.87/1,349,859.60 = 260,203.86/x
  3. Step 3: Cross multiply
    900,039.87x = 1,349,859.60 × 260,203.86
  4. Step 4: Simplify right side
    900,039.87x = 351,238,678,378.06
  5. Step 5: Solve for x
    x = 351,238,678,378.06/900,039.87
  6. Step 6: Final answer
    x = 390,247.91

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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.