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Finding the Fourth Proportional to 637,124.64, 879,214.32 and 361,532.68

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Solution

The fourth proportional to 637,124.64, 879,214.32 and 361,532.68 is: 498,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,124.64 : 879,214.32 = 361,532.68 : x
  2. Step 2: Convert to fraction form
    637,124.64/879,214.32 = 361,532.68/x
  3. Step 3: Cross multiply
    637,124.64x = 879,214.32 × 361,532.68
  4. Step 4: Simplify right side
    637,124.64x = 317,864,709,403.98
  5. Step 5: Solve for x
    x = 317,864,709,403.98/637,124.64
  6. Step 6: Final answer
    x = 498,905.06

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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.