Home / 520,117.45-780,325.62-216,452.50

Finding the Fourth Proportional to 520,117.45, 780,325.62 and 216,452.50

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Solution

The fourth proportional to 520,117.45, 780,325.62 and 216,452.50 is: 324,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,117.45 : 780,325.62 = 216,452.50 : x
  2. Step 2: Convert to fraction form
    520,117.45/780,325.62 = 216,452.50/x
  3. Step 3: Cross multiply
    520,117.45x = 780,325.62 × 216,452.50
  4. Step 4: Simplify right side
    520,117.45x = 168,903,431,263.05
  5. Step 5: Solve for x
    x = 168,903,431,263.05/520,117.45
  6. Step 6: Final answer
    x = 324,740.94

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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.