Home / 693,603.60-1,039,714.20-318,973.20

Finding the Fourth Proportional to 693,603.60, 1,039,714.20 and 318,973.20

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Solution

The fourth proportional to 693,603.60, 1,039,714.20 and 318,973.20 is: 478,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,603.60 : 1,039,714.20 = 318,973.20 : x
  2. Step 2: Convert to fraction form
    693,603.60/1,039,714.20 = 318,973.20/x
  3. Step 3: Cross multiply
    693,603.60x = 1,039,714.20 × 318,973.20
  4. Step 4: Simplify right side
    693,603.60x = 331,640,965,459.44
  5. Step 5: Solve for x
    x = 331,640,965,459.44/693,603.60
  6. Step 6: Final answer
    x = 478,141.93

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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.