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Finding the Fourth Proportional to 554,998.15, 765,897.45 and 300,349.33

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Solution

The fourth proportional to 554,998.15, 765,897.45 and 300,349.33 is: 414,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,998.15 : 765,897.45 = 300,349.33 : x
  2. Step 2: Convert to fraction form
    554,998.15/765,897.45 = 300,349.33/x
  3. Step 3: Cross multiply
    554,998.15x = 765,897.45 × 300,349.33
  4. Step 4: Simplify right side
    554,998.15x = 230,036,785,956.21
  5. Step 5: Solve for x
    x = 230,036,785,956.21/554,998.15
  6. Step 6: Final answer
    x = 414,482.08

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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.