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Finding the Fourth Proportional to 573,740, 791,756.82 and 315,611.39

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Solution

The fourth proportional to 573,740, 791,756.82 and 315,611.39 is: 435,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,740 : 791,756.82 = 315,611.39 : x
  2. Step 2: Convert to fraction form
    573,740/791,756.82 = 315,611.39/x
  3. Step 3: Cross multiply
    573,740x = 791,756.82 × 315,611.39
  4. Step 4: Simplify right side
    573,740x = 249,887,470,502.18
  5. Step 5: Solve for x
    x = 249,887,470,502.18/573,740
  6. Step 6: Final answer
    x = 435,541.31

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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.