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Finding the Fourth Proportional to 556,950.36, 768,459.66 and 315,232.92

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Solution

The fourth proportional to 556,950.36, 768,459.66 and 315,232.92 is: 434,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,950.36 : 768,459.66 = 315,232.92 : x
  2. Step 2: Convert to fraction form
    556,950.36/768,459.66 = 315,232.92/x
  3. Step 3: Cross multiply
    556,950.36x = 768,459.66 × 315,232.92
  4. Step 4: Simplify right side
    556,950.36x = 242,243,782,524.01
  5. Step 5: Solve for x
    x = 242,243,782,524.01/556,950.36
  6. Step 6: Final answer
    x = 434,946.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.