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Finding the Fourth Proportional to 567,258.58, 782,816.98 and 309,135.60

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Solution

The fourth proportional to 567,258.58, 782,816.98 and 309,135.60 is: 426,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,258.58 : 782,816.98 = 309,135.60 : x
  2. Step 2: Convert to fraction form
    567,258.58/782,816.98 = 309,135.60/x
  3. Step 3: Cross multiply
    567,258.58x = 782,816.98 × 309,135.60
  4. Step 4: Simplify right side
    567,258.58x = 241,996,596,802.49
  5. Step 5: Solve for x
    x = 241,996,596,802.49/567,258.58
  6. Step 6: Final answer
    x = 426,607.20

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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.