Home / 777,113.72-1,072,449.90-432,949.34

Finding the Fourth Proportional to 777,113.72, 1,072,449.90 and 432,949.34

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Solution

The fourth proportional to 777,113.72, 1,072,449.90 and 432,949.34 is: 597,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,113.72 : 1,072,449.90 = 432,949.34 : x
  2. Step 2: Convert to fraction form
    777,113.72/1,072,449.90 = 432,949.34/x
  3. Step 3: Cross multiply
    777,113.72x = 1,072,449.90 × 432,949.34
  4. Step 4: Simplify right side
    777,113.72x = 464,316,476,388.07
  5. Step 5: Solve for x
    x = 464,316,476,388.07/777,113.72
  6. Step 6: Final answer
    x = 597,488.46

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Double scale
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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.