Home / 1,121,123.08-1,680,684.66-410,985.37

Finding the Fourth Proportional to 1,121,123.08, 1,680,684.66 and 410,985.37

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Solution

The fourth proportional to 1,121,123.08, 1,680,684.66 and 410,985.37 is: 616,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,123.08 : 1,680,684.66 = 410,985.37 : x
  2. Step 2: Convert to fraction form
    1,121,123.08/1,680,684.66 = 410,985.37/x
  3. Step 3: Cross multiply
    1,121,123.08x = 1,680,684.66 × 410,985.37
  4. Step 4: Simplify right side
    1,121,123.08x = 690,736,806,843.42
  5. Step 5: Solve for x
    x = 690,736,806,843.42/1,121,123.08
  6. Step 6: Final answer
    x = 616,111.49

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Double scale
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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.