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Finding the Fourth Proportional to 684,597.60, 1,026,021.60 and 328,845.60

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Solution

The fourth proportional to 684,597.60, 1,026,021.60 and 328,845.60 is: 492,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,597.60 : 1,026,021.60 = 328,845.60 : x
  2. Step 2: Convert to fraction form
    684,597.60/1,026,021.60 = 328,845.60/x
  3. Step 3: Cross multiply
    684,597.60x = 1,026,021.60 × 328,845.60
  4. Step 4: Simplify right side
    684,597.60x = 337,402,688,664.96
  5. Step 5: Solve for x
    x = 337,402,688,664.96/684,597.60
  6. Step 6: Final answer
    x = 492,848.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.