Home / 820,068.09-1,228,946.07-387,324.24

Finding the Fourth Proportional to 820,068.09, 1,228,946.07 and 387,324.24

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Solution

The fourth proportional to 820,068.09, 1,228,946.07 and 387,324.24 is: 580,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,068.09 : 1,228,946.07 = 387,324.24 : x
  2. Step 2: Convert to fraction form
    820,068.09/1,228,946.07 = 387,324.24/x
  3. Step 3: Cross multiply
    820,068.09x = 1,228,946.07 × 387,324.24
  4. Step 4: Simplify right side
    820,068.09x = 476,000,602,563.74
  5. Step 5: Solve for x
    x = 476,000,602,563.74/820,068.09
  6. Step 6: Final answer
    x = 580,440.34

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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.