Home / 3,115,386.20-4,674,308.10-1,221,805.40

Finding the Fourth Proportional to 3,115,386.20, 4,674,308.10 and 1,221,805.40

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Solution

The fourth proportional to 3,115,386.20, 4,674,308.10 and 1,221,805.40 is: 1,833,190.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,386.20 : 4,674,308.10 = 1,221,805.40 : x
  2. Step 2: Convert to fraction form
    3,115,386.20/4,674,308.10 = 1,221,805.40/x
  3. Step 3: Cross multiply
    3,115,386.20x = 4,674,308.10 × 1,221,805.40
  4. Step 4: Simplify right side
    3,115,386.20x = 5,711,094,877,843.74
  5. Step 5: Solve for x
    x = 5,711,094,877,843.74/3,115,386.20
  6. Step 6: Final answer
    x = 1,833,190.02

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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.