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Finding the Fourth Proportional to 522,683.40, 721,259.28 and 293,208.60

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Solution

The fourth proportional to 522,683.40, 721,259.28 and 293,208.60 is: 404,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,683.40 : 721,259.28 = 293,208.60 : x
  2. Step 2: Convert to fraction form
    522,683.40/721,259.28 = 293,208.60/x
  3. Step 3: Cross multiply
    522,683.40x = 721,259.28 × 293,208.60
  4. Step 4: Simplify right side
    522,683.40x = 211,479,423,725.81
  5. Step 5: Solve for x
    x = 211,479,423,725.81/522,683.40
  6. Step 6: Final answer
    x = 404,603.29

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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.