Home / 917,235.90-1,375,914.60-243,307.80

Finding the Fourth Proportional to 917,235.90, 1,375,914.60 and 243,307.80

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Solution

The fourth proportional to 917,235.90, 1,375,914.60 and 243,307.80 is: 364,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,235.90 : 1,375,914.60 = 243,307.80 : x
  2. Step 2: Convert to fraction form
    917,235.90/1,375,914.60 = 243,307.80/x
  3. Step 3: Cross multiply
    917,235.90x = 1,375,914.60 × 243,307.80
  4. Step 4: Simplify right side
    917,235.90x = 334,770,754,313.88
  5. Step 5: Solve for x
    x = 334,770,754,313.88/917,235.90
  6. Step 6: Final answer
    x = 364,977.81

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1.5x scale

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.