Home / 1,312,442.92-1,968,828.54-513,621.28

Finding the Fourth Proportional to 1,312,442.92, 1,968,828.54 and 513,621.28

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Solution

The fourth proportional to 1,312,442.92, 1,968,828.54 and 513,621.28 is: 770,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,442.92 : 1,968,828.54 = 513,621.28 : x
  2. Step 2: Convert to fraction form
    1,312,442.92/1,968,828.54 = 513,621.28/x
  3. Step 3: Cross multiply
    1,312,442.92x = 1,968,828.54 × 513,621.28
  4. Step 4: Simplify right side
    1,312,442.92x = 1,011,232,234,815.33
  5. Step 5: Solve for x
    x = 1,011,232,234,815.33/1,312,442.92
  6. Step 6: Final answer
    x = 770,496.16

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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.