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Finding the Fourth Proportional to 555,547.76, 766,657.14 and 300,899

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Solution

The fourth proportional to 555,547.76, 766,657.14 and 300,899 is: 415,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,547.76 : 766,657.14 = 300,899 : x
  2. Step 2: Convert to fraction form
    555,547.76/766,657.14 = 300,899/x
  3. Step 3: Cross multiply
    555,547.76x = 766,657.14 × 300,899
  4. Step 4: Simplify right side
    555,547.76x = 230,686,366,768.86
  5. Step 5: Solve for x
    x = 230,686,366,768.86/555,547.76
  6. Step 6: Final answer
    x = 415,241.29

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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.