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Finding the Fourth Proportional to 637,585.83, 879,604.38 and 379,411.08

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Solution

The fourth proportional to 637,585.83, 879,604.38 and 379,411.08 is: 523,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,585.83 : 879,604.38 = 379,411.08 : x
  2. Step 2: Convert to fraction form
    637,585.83/879,604.38 = 379,411.08/x
  3. Step 3: Cross multiply
    637,585.83x = 879,604.38 × 379,411.08
  4. Step 4: Simplify right side
    637,585.83x = 333,731,647,788.53
  5. Step 5: Solve for x
    x = 333,731,647,788.53/637,585.83
  6. Step 6: Final answer
    x = 523,430.15

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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.