Home / 1,209,948.51-1,814,910.45-311,386.76

Finding the Fourth Proportional to 1,209,948.51, 1,814,910.45 and 311,386.76

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Solution

The fourth proportional to 1,209,948.51, 1,814,910.45 and 311,386.76 is: 467,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,948.51 : 1,814,910.45 = 311,386.76 : x
  2. Step 2: Convert to fraction form
    1,209,948.51/1,814,910.45 = 311,386.76/x
  3. Step 3: Cross multiply
    1,209,948.51x = 1,814,910.45 × 311,386.76
  4. Step 4: Simplify right side
    1,209,948.51x = 565,139,074,084.16
  5. Step 5: Solve for x
    x = 565,139,074,084.16/1,209,948.51
  6. Step 6: Final answer
    x = 467,076.96

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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.