Home / 405,022.40-607,533.60-124,539.20

Finding the Fourth Proportional to 405,022.40, 607,533.60 and 124,539.20

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Solution

The fourth proportional to 405,022.40, 607,533.60 and 124,539.20 is: 186,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,022.40 : 607,533.60 = 124,539.20 : x
  2. Step 2: Convert to fraction form
    405,022.40/607,533.60 = 124,539.20/x
  3. Step 3: Cross multiply
    405,022.40x = 607,533.60 × 124,539.20
  4. Step 4: Simplify right side
    405,022.40x = 75,661,748,517.12
  5. Step 5: Solve for x
    x = 75,661,748,517.12/405,022.40
  6. Step 6: Final answer
    x = 186,808.80

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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.