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Finding the Fourth Proportional to 660,125.92, 989,582.64 and 239,300.32

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Solution

The fourth proportional to 660,125.92, 989,582.64 and 239,300.32 is: 358,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,125.92 : 989,582.64 = 239,300.32 : x
  2. Step 2: Convert to fraction form
    660,125.92/989,582.64 = 239,300.32/x
  3. Step 3: Cross multiply
    660,125.92x = 989,582.64 × 239,300.32
  4. Step 4: Simplify right side
    660,125.92x = 236,807,442,418.45
  5. Step 5: Solve for x
    x = 236,807,442,418.45/660,125.92
  6. Step 6: Final answer
    x = 358,730.71

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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.