Home / 847,386.45-1,169,108.79-479,813.36

Finding the Fourth Proportional to 847,386.45, 1,169,108.79 and 479,813.36

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Solution

The fourth proportional to 847,386.45, 1,169,108.79 and 479,813.36 is: 661,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,386.45 : 1,169,108.79 = 479,813.36 : x
  2. Step 2: Convert to fraction form
    847,386.45/1,169,108.79 = 479,813.36/x
  3. Step 3: Cross multiply
    847,386.45x = 1,169,108.79 × 479,813.36
  4. Step 4: Simplify right side
    847,386.45x = 560,954,015,535.90
  5. Step 5: Solve for x
    x = 560,954,015,535.90/847,386.45
  6. Step 6: Final answer
    x = 661,981.34

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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.