Home / 780,484.21-1,077,241.48-474,495.57

Finding the Fourth Proportional to 780,484.21, 1,077,241.48 and 474,495.57

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Solution

The fourth proportional to 780,484.21, 1,077,241.48 and 474,495.57 is: 654,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,484.21 : 1,077,241.48 = 474,495.57 : x
  2. Step 2: Convert to fraction form
    780,484.21/1,077,241.48 = 474,495.57/x
  3. Step 3: Cross multiply
    780,484.21x = 1,077,241.48 × 474,495.57
  4. Step 4: Simplify right side
    780,484.21x = 511,146,308,894.01
  5. Step 5: Solve for x
    x = 511,146,308,894.01/780,484.21
  6. Step 6: Final answer
    x = 654,909.23

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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.