Home / 876,561.70-1,314,973.95-371,121.70

Finding the Fourth Proportional to 876,561.70, 1,314,973.95 and 371,121.70

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Solution

The fourth proportional to 876,561.70, 1,314,973.95 and 371,121.70 is: 556,738.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,561.70 : 1,314,973.95 = 371,121.70 : x
  2. Step 2: Convert to fraction form
    876,561.70/1,314,973.95 = 371,121.70/x
  3. Step 3: Cross multiply
    876,561.70x = 1,314,973.95 × 371,121.70
  4. Step 4: Simplify right side
    876,561.70x = 488,015,367,779.72
  5. Step 5: Solve for x
    x = 488,015,367,779.72/876,561.70
  6. Step 6: Final answer
    x = 556,738.18

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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.