Home / 1,123,313.60-1,684,970.40-324,621.20

Finding the Fourth Proportional to 1,123,313.60, 1,684,970.40 and 324,621.20

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Solution

The fourth proportional to 1,123,313.60, 1,684,970.40 and 324,621.20 is: 486,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,313.60 : 1,684,970.40 = 324,621.20 : x
  2. Step 2: Convert to fraction form
    1,123,313.60/1,684,970.40 = 324,621.20/x
  3. Step 3: Cross multiply
    1,123,313.60x = 1,684,970.40 × 324,621.20
  4. Step 4: Simplify right side
    1,123,313.60x = 546,977,113,212.48
  5. Step 5: Solve for x
    x = 546,977,113,212.48/1,123,313.60
  6. Step 6: Final answer
    x = 486,931.80

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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.