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Finding the Fourth Proportional to 562,218.60, 775,867.79 and 307,564.32

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Solution

The fourth proportional to 562,218.60, 775,867.79 and 307,564.32 is: 424,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,218.60 : 775,867.79 = 307,564.32 : x
  2. Step 2: Convert to fraction form
    562,218.60/775,867.79 = 307,564.32/x
  3. Step 3: Cross multiply
    562,218.60x = 775,867.79 × 307,564.32
  4. Step 4: Simplify right side
    562,218.60x = 238,629,249,241.25
  5. Step 5: Solve for x
    x = 238,629,249,241.25/562,218.60
  6. Step 6: Final answer
    x = 424,442.11

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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.