Home / 1,262,113.60-1,892,479.20-513,313.60

Finding the Fourth Proportional to 1,262,113.60, 1,892,479.20 and 513,313.60

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Solution

The fourth proportional to 1,262,113.60, 1,892,479.20 and 513,313.60 is: 769,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,113.60 : 1,892,479.20 = 513,313.60 : x
  2. Step 2: Convert to fraction form
    1,262,113.60/1,892,479.20 = 513,313.60/x
  3. Step 3: Cross multiply
    1,262,113.60x = 1,892,479.20 × 513,313.60
  4. Step 4: Simplify right side
    1,262,113.60x = 971,435,311,077.12
  5. Step 5: Solve for x
    x = 971,435,311,077.12/1,262,113.60
  6. Step 6: Final answer
    x = 769,689.28

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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.