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Finding the Fourth Proportional to 660,752.89, 911,809.79 and 374,267.23

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Solution

The fourth proportional to 660,752.89, 911,809.79 and 374,267.23 is: 516,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,752.89 : 911,809.79 = 374,267.23 : x
  2. Step 2: Convert to fraction form
    660,752.89/911,809.79 = 374,267.23/x
  3. Step 3: Cross multiply
    660,752.89x = 911,809.79 × 374,267.23
  4. Step 4: Simplify right side
    660,752.89x = 341,260,522,518.85
  5. Step 5: Solve for x
    x = 341,260,522,518.85/660,752.89
  6. Step 6: Final answer
    x = 516,472.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.