Home / 3,878,316-5,818,104.36-1,146,140.64

Finding the Fourth Proportional to 3,878,316, 5,818,104.36 and 1,146,140.64

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Solution

The fourth proportional to 3,878,316, 5,818,104.36 and 1,146,140.64 is: 1,719,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,316 : 5,818,104.36 = 1,146,140.64 : x
  2. Step 2: Convert to fraction form
    3,878,316/5,818,104.36 = 1,146,140.64/x
  3. Step 3: Cross multiply
    3,878,316x = 5,818,104.36 × 1,146,140.64
  4. Step 4: Simplify right side
    3,878,316x = 6,668,365,854,757.19
  5. Step 5: Solve for x
    x = 6,668,365,854,757.19/3,878,316
  6. Step 6: Final answer
    x = 1,719,397.25

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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.