Home / 1,325,385.20-1,989,114.60-615,501.20

Finding the Fourth Proportional to 1,325,385.20, 1,989,114.60 and 615,501.20

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Solution

The fourth proportional to 1,325,385.20, 1,989,114.60 and 615,501.20 is: 923,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,385.20 : 1,989,114.60 = 615,501.20 : x
  2. Step 2: Convert to fraction form
    1,325,385.20/1,989,114.60 = 615,501.20/x
  3. Step 3: Cross multiply
    1,325,385.20x = 1,989,114.60 × 615,501.20
  4. Step 4: Simplify right side
    1,325,385.20x = 1,224,302,423,237.52
  5. Step 5: Solve for x
    x = 1,224,302,423,237.52/1,325,385.20
  6. Step 6: Final answer
    x = 923,733.28

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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.