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Finding the Fourth Proportional to 660,258.19, 990,007.46 and 352,130.07

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Solution

The fourth proportional to 660,258.19, 990,007.46 and 352,130.07 is: 527,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,258.19 : 990,007.46 = 352,130.07 : x
  2. Step 2: Convert to fraction form
    660,258.19/990,007.46 = 352,130.07/x
  3. Step 3: Cross multiply
    660,258.19x = 990,007.46 × 352,130.07
  4. Step 4: Simplify right side
    660,258.19x = 348,611,394,429.67
  5. Step 5: Solve for x
    x = 348,611,394,429.67/660,258.19
  6. Step 6: Final answer
    x = 527,992.54

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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.