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Finding the Fourth Proportional to 507,485.66, 700,297.38 and 278,042.63

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Solution

The fourth proportional to 507,485.66, 700,297.38 and 278,042.63 is: 383,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,485.66 : 700,297.38 = 278,042.63 : x
  2. Step 2: Convert to fraction form
    507,485.66/700,297.38 = 278,042.63/x
  3. Step 3: Cross multiply
    507,485.66x = 700,297.38 × 278,042.63
  4. Step 4: Simplify right side
    507,485.66x = 194,712,521,815.82
  5. Step 5: Solve for x
    x = 194,712,521,815.82/507,485.66
  6. Step 6: Final answer
    x = 383,680.84

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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.