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Finding the Fourth Proportional to 554,984.96, 765,881.58 and 300,336.16

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Solution

The fourth proportional to 554,984.96, 765,881.58 and 300,336.16 is: 414,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,984.96 : 765,881.58 = 300,336.16 : x
  2. Step 2: Convert to fraction form
    554,984.96/765,881.58 = 300,336.16/x
  3. Step 3: Cross multiply
    554,984.96x = 765,881.58 × 300,336.16
  4. Step 4: Simplify right side
    554,984.96x = 230,021,932,751.93
  5. Step 5: Solve for x
    x = 230,021,932,751.93/554,984.96
  6. Step 6: Final answer
    x = 414,465.16

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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.