Home / 1,112,340.33-1,668,640.10-402,702.57

Finding the Fourth Proportional to 1,112,340.33, 1,668,640.10 and 402,702.57

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Solution

The fourth proportional to 1,112,340.33, 1,668,640.10 and 402,702.57 is: 604,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,340.33 : 1,668,640.10 = 402,702.57 : x
  2. Step 2: Convert to fraction form
    1,112,340.33/1,668,640.10 = 402,702.57/x
  3. Step 3: Cross multiply
    1,112,340.33x = 1,668,640.10 × 402,702.57
  4. Step 4: Simplify right side
    1,112,340.33x = 671,965,654,661.54
  5. Step 5: Solve for x
    x = 671,965,654,661.54/1,112,340.33
  6. Step 6: Final answer
    x = 604,100.77

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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.