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Finding the Fourth Proportional to 509,627.40, 764,441.10 and 360,036.60

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Solution

The fourth proportional to 509,627.40, 764,441.10 and 360,036.60 is: 540,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,627.40 : 764,441.10 = 360,036.60 : x
  2. Step 2: Convert to fraction form
    509,627.40/764,441.10 = 360,036.60/x
  3. Step 3: Cross multiply
    509,627.40x = 764,441.10 × 360,036.60
  4. Step 4: Simplify right side
    509,627.40x = 275,226,774,544.26
  5. Step 5: Solve for x
    x = 275,226,774,544.26/509,627.40
  6. Step 6: Final answer
    x = 540,054.90

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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.