Home / 668,045.30-1,002,845.55-402,106.10

Finding the Fourth Proportional to 668,045.30, 1,002,845.55 and 402,106.10

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Solution

The fourth proportional to 668,045.30, 1,002,845.55 and 402,106.10 is: 603,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,045.30 : 1,002,845.55 = 402,106.10 : x
  2. Step 2: Convert to fraction form
    668,045.30/1,002,845.55 = 402,106.10/x
  3. Step 3: Cross multiply
    668,045.30x = 1,002,845.55 × 402,106.10
  4. Step 4: Simplify right side
    668,045.30x = 403,250,313,012.86
  5. Step 5: Solve for x
    x = 403,250,313,012.86/668,045.30
  6. Step 6: Final answer
    x = 603,627.20

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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.