Home / 874,897.40-1,312,346.02-210,049.40

Finding the Fourth Proportional to 874,897.40, 1,312,346.02 and 210,049.40

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Solution

The fourth proportional to 874,897.40, 1,312,346.02 and 210,049.40 is: 315,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,897.40 : 1,312,346.02 = 210,049.40 : x
  2. Step 2: Convert to fraction form
    874,897.40/1,312,346.02 = 210,049.40/x
  3. Step 3: Cross multiply
    874,897.40x = 1,312,346.02 × 210,049.40
  4. Step 4: Simplify right side
    874,897.40x = 275,657,494,093.39
  5. Step 5: Solve for x
    x = 275,657,494,093.39/874,897.40
  6. Step 6: Final answer
    x = 315,074.08

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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.