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Finding the Fourth Proportional to 577,277.40, 866,304.90 and 340,368.60

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Solution

The fourth proportional to 577,277.40, 866,304.90 and 340,368.60 is: 510,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,277.40 : 866,304.90 = 340,368.60 : x
  2. Step 2: Convert to fraction form
    577,277.40/866,304.90 = 340,368.60/x
  3. Step 3: Cross multiply
    577,277.40x = 866,304.90 × 340,368.60
  4. Step 4: Simplify right side
    577,277.40x = 294,862,985,986.14
  5. Step 5: Solve for x
    x = 294,862,985,986.14/577,277.40
  6. Step 6: Final answer
    x = 510,782.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.