Home / 3,421,053.60-5,129,636.40-1,291,207.20

Finding the Fourth Proportional to 3,421,053.60, 5,129,636.40 and 1,291,207.20

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Solution

The fourth proportional to 3,421,053.60, 5,129,636.40 and 1,291,207.20 is: 1,936,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421,053.60 : 5,129,636.40 = 1,291,207.20 : x
  2. Step 2: Convert to fraction form
    3,421,053.60/5,129,636.40 = 1,291,207.20/x
  3. Step 3: Cross multiply
    3,421,053.60x = 5,129,636.40 × 1,291,207.20
  4. Step 4: Simplify right side
    3,421,053.60x = 6,623,423,453,062.08
  5. Step 5: Solve for x
    x = 6,623,423,453,062.08/3,421,053.60
  6. Step 6: Final answer
    x = 1,936,077.08

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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.