Home / 692,485.20-1,038,468.60-243,032.40

Finding the Fourth Proportional to 692,485.20, 1,038,468.60 and 243,032.40

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Solution

The fourth proportional to 692,485.20, 1,038,468.60 and 243,032.40 is: 364,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,485.20 : 1,038,468.60 = 243,032.40 : x
  2. Step 2: Convert to fraction form
    692,485.20/1,038,468.60 = 243,032.40/x
  3. Step 3: Cross multiply
    692,485.20x = 1,038,468.60 × 243,032.40
  4. Step 4: Simplify right side
    692,485.20x = 252,381,516,182.64
  5. Step 5: Solve for x
    x = 252,381,516,182.64/692,485.20
  6. Step 6: Final answer
    x = 364,457.63

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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.