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Finding the Fourth Proportional to 507,741.60, 700,654.91 and 278,255.13

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Solution

The fourth proportional to 507,741.60, 700,654.91 and 278,255.13 is: 383,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,741.60 : 700,654.91 = 278,255.13 : x
  2. Step 2: Convert to fraction form
    507,741.60/700,654.91 = 278,255.13/x
  3. Step 3: Cross multiply
    507,741.60x = 700,654.91 × 278,255.13
  4. Step 4: Simplify right side
    507,741.60x = 194,960,824,554.83
  5. Step 5: Solve for x
    x = 194,960,824,554.83/507,741.60
  6. Step 6: Final answer
    x = 383,976.47

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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.