Home / 911,923.78-1,367,885.70-247,075.78

Finding the Fourth Proportional to 911,923.78, 1,367,885.70 and 247,075.78

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Solution

The fourth proportional to 911,923.78, 1,367,885.70 and 247,075.78 is: 370,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,923.78 : 1,367,885.70 = 247,075.78 : x
  2. Step 2: Convert to fraction form
    911,923.78/1,367,885.70 = 247,075.78/x
  3. Step 3: Cross multiply
    911,923.78x = 1,367,885.70 × 247,075.78
  4. Step 4: Simplify right side
    911,923.78x = 337,971,426,278.35
  5. Step 5: Solve for x
    x = 337,971,426,278.35/911,923.78
  6. Step 6: Final answer
    x = 370,613.68

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Double scale
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Similar ratio
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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.