Home / 777,063.36-1,072,506.96-490,391.04

Finding the Fourth Proportional to 777,063.36, 1,072,506.96 and 490,391.04

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Solution

The fourth proportional to 777,063.36, 1,072,506.96 and 490,391.04 is: 676,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,063.36 : 1,072,506.96 = 490,391.04 : x
  2. Step 2: Convert to fraction form
    777,063.36/1,072,506.96 = 490,391.04/x
  3. Step 3: Cross multiply
    777,063.36x = 1,072,506.96 × 490,391.04
  4. Step 4: Simplify right side
    777,063.36x = 525,947,803,521.64
  5. Step 5: Solve for x
    x = 525,947,803,521.64/777,063.36
  6. Step 6: Final answer
    x = 676,840.31

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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.