Home / 1,349,064.76-1,861,815.51-768,312.46

Finding the Fourth Proportional to 1,349,064.76, 1,861,815.51 and 768,312.46

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Solution

The fourth proportional to 1,349,064.76, 1,861,815.51 and 768,312.46 is: 1,060,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,064.76 : 1,861,815.51 = 768,312.46 : x
  2. Step 2: Convert to fraction form
    1,349,064.76/1,861,815.51 = 768,312.46/x
  3. Step 3: Cross multiply
    1,349,064.76x = 1,861,815.51 × 768,312.46
  4. Step 4: Simplify right side
    1,349,064.76x = 1,430,456,054,554.25
  5. Step 5: Solve for x
    x = 1,430,456,054,554.25/1,349,064.76
  6. Step 6: Final answer
    x = 1,060,331.64

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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.