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Finding the Fourth Proportional to 573,548.31, 791,505.81 and 315,436.55

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Solution

The fourth proportional to 573,548.31, 791,505.81 and 315,436.55 is: 435,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,548.31 : 791,505.81 = 315,436.55 : x
  2. Step 2: Convert to fraction form
    573,548.31/791,505.81 = 315,436.55/x
  3. Step 3: Cross multiply
    573,548.31x = 791,505.81 × 315,436.55
  4. Step 4: Simplify right side
    573,548.31x = 249,669,858,053.83
  5. Step 5: Solve for x
    x = 249,669,858,053.83/573,548.31
  6. Step 6: Final answer
    x = 435,307.46

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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.