Home / 918,910.70-1,267,999.71-510,946.73

Finding the Fourth Proportional to 918,910.70, 1,267,999.71 and 510,946.73

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Solution

The fourth proportional to 918,910.70, 1,267,999.71 and 510,946.73 is: 705,052.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,910.70 : 1,267,999.71 = 510,946.73 : x
  2. Step 2: Convert to fraction form
    918,910.70/1,267,999.71 = 510,946.73/x
  3. Step 3: Cross multiply
    918,910.70x = 1,267,999.71 × 510,946.73
  4. Step 4: Simplify right side
    918,910.70x = 647,880,305,465.45
  5. Step 5: Solve for x
    x = 647,880,305,465.45/918,910.70
  6. Step 6: Final answer
    x = 705,052.52

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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.