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Finding the Fourth Proportional to 437,371.68, 603,585.36 and 421,508.64

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Solution

The fourth proportional to 437,371.68, 603,585.36 and 421,508.64 is: 581,693.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,371.68 : 603,585.36 = 421,508.64 : x
  2. Step 2: Convert to fraction form
    437,371.68/603,585.36 = 421,508.64/x
  3. Step 3: Cross multiply
    437,371.68x = 603,585.36 × 421,508.64
  4. Step 4: Simplify right side
    437,371.68x = 254,416,444,217.51
  5. Step 5: Solve for x
    x = 254,416,444,217.51/437,371.68
  6. Step 6: Final answer
    x = 581,693.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.