Home / 740,420.32-1,109,790.88-340,234.18

Finding the Fourth Proportional to 740,420.32, 1,109,790.88 and 340,234.18

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Solution

The fourth proportional to 740,420.32, 1,109,790.88 and 340,234.18 is: 509,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,420.32 : 1,109,790.88 = 340,234.18 : x
  2. Step 2: Convert to fraction form
    740,420.32/1,109,790.88 = 340,234.18/x
  3. Step 3: Cross multiply
    740,420.32x = 1,109,790.88 × 340,234.18
  4. Step 4: Simplify right side
    740,420.32x = 377,588,786,403.22
  5. Step 5: Solve for x
    x = 377,588,786,403.22/740,420.32
  6. Step 6: Final answer
    x = 509,965.46

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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.