Home / 1,329,420.60-1,994,130.90-488,300.40

Finding the Fourth Proportional to 1,329,420.60, 1,994,130.90 and 488,300.40

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Solution

The fourth proportional to 1,329,420.60, 1,994,130.90 and 488,300.40 is: 732,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,420.60 : 1,994,130.90 = 488,300.40 : x
  2. Step 2: Convert to fraction form
    1,329,420.60/1,994,130.90 = 488,300.40/x
  3. Step 3: Cross multiply
    1,329,420.60x = 1,994,130.90 × 488,300.40
  4. Step 4: Simplify right side
    1,329,420.60x = 973,734,916,122.36
  5. Step 5: Solve for x
    x = 973,734,916,122.36/1,329,420.60
  6. Step 6: Final answer
    x = 732,450.60

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Double scale
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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.