Home / 780,252.40-1,170,145.32-406,071.28

Finding the Fourth Proportional to 780,252.40, 1,170,145.32 and 406,071.28

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Solution

The fourth proportional to 780,252.40, 1,170,145.32 and 406,071.28 is: 608,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,252.40 : 1,170,145.32 = 406,071.28 : x
  2. Step 2: Convert to fraction form
    780,252.40/1,170,145.32 = 406,071.28/x
  3. Step 3: Cross multiply
    780,252.40x = 1,170,145.32 × 406,071.28
  4. Step 4: Simplify right side
    780,252.40x = 475,162,407,878.41
  5. Step 5: Solve for x
    x = 475,162,407,878.41/780,252.40
  6. Step 6: Final answer
    x = 608,985.51

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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.