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Finding the Fourth Proportional to 660,541.85, 990,500.67 and 255,923.62

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Solution

The fourth proportional to 660,541.85, 990,500.67 and 255,923.62 is: 383,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,541.85 : 990,500.67 = 255,923.62 : x
  2. Step 2: Convert to fraction form
    660,541.85/990,500.67 = 255,923.62/x
  3. Step 3: Cross multiply
    660,541.85x = 990,500.67 × 255,923.62
  4. Step 4: Simplify right side
    660,541.85x = 253,492,514,602.57
  5. Step 5: Solve for x
    x = 253,492,514,602.57/660,541.85
  6. Step 6: Final answer
    x = 383,764.50

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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.