Home / 1,209,953.98-1,814,918.60-311,392.20

Finding the Fourth Proportional to 1,209,953.98, 1,814,918.60 and 311,392.20

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Solution

The fourth proportional to 1,209,953.98, 1,814,918.60 and 311,392.20 is: 467,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,953.98 : 1,814,918.60 = 311,392.20 : x
  2. Step 2: Convert to fraction form
    1,209,953.98/1,814,918.60 = 311,392.20/x
  3. Step 3: Cross multiply
    1,209,953.98x = 1,814,918.60 × 311,392.20
  4. Step 4: Simplify right side
    1,209,953.98x = 565,151,495,674.92
  5. Step 5: Solve for x
    x = 565,151,495,674.92/1,209,953.98
  6. Step 6: Final answer
    x = 467,085.12

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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.