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Finding the Fourth Proportional to 970,568.60, 1,455,852.90 and 339,416.60

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Solution

The fourth proportional to 970,568.60, 1,455,852.90 and 339,416.60 is: 509,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,568.60 : 1,455,852.90 = 339,416.60 : x
  2. Step 2: Convert to fraction form
    970,568.60/1,455,852.90 = 339,416.60/x
  3. Step 3: Cross multiply
    970,568.60x = 1,455,852.90 × 339,416.60
  4. Step 4: Simplify right side
    970,568.60x = 494,140,641,418.14
  5. Step 5: Solve for x
    x = 494,140,641,418.14/970,568.60
  6. Step 6: Final answer
    x = 509,124.90

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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.