Home / 809,421.18-1,117,005.45-446,838.42

Finding the Fourth Proportional to 809,421.18, 1,117,005.45 and 446,838.42

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Solution

The fourth proportional to 809,421.18, 1,117,005.45 and 446,838.42 is: 616,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,421.18 : 1,117,005.45 = 446,838.42 : x
  2. Step 2: Convert to fraction form
    809,421.18/1,117,005.45 = 446,838.42/x
  3. Step 3: Cross multiply
    809,421.18x = 1,117,005.45 × 446,838.42
  4. Step 4: Simplify right side
    809,421.18x = 499,120,950,409.39
  5. Step 5: Solve for x
    x = 499,120,950,409.39/809,421.18
  6. Step 6: Final answer
    x = 616,639.35

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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.