Home / 1,090,397.19-1,505,213.38-776,271.55

Finding the Fourth Proportional to 1,090,397.19, 1,505,213.38 and 776,271.55

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Solution

The fourth proportional to 1,090,397.19, 1,505,213.38 and 776,271.55 is: 1,071,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,397.19 : 1,505,213.38 = 776,271.55 : x
  2. Step 2: Convert to fraction form
    1,090,397.19/1,505,213.38 = 776,271.55/x
  3. Step 3: Cross multiply
    1,090,397.19x = 1,505,213.38 × 776,271.55
  4. Step 4: Simplify right side
    1,090,397.19x = 1,168,454,323,602.92
  5. Step 5: Solve for x
    x = 1,168,454,323,602.92/1,090,397.19
  6. Step 6: Final answer
    x = 1,071,585.96

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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.