Home / 802,340.70-1,202,128.65-380,708.70

Finding the Fourth Proportional to 802,340.70, 1,202,128.65 and 380,708.70

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Solution

The fourth proportional to 802,340.70, 1,202,128.65 and 380,708.70 is: 570,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,340.70 : 1,202,128.65 = 380,708.70 : x
  2. Step 2: Convert to fraction form
    802,340.70/1,202,128.65 = 380,708.70/x
  3. Step 3: Cross multiply
    802,340.70x = 1,202,128.65 × 380,708.70
  4. Step 4: Simplify right side
    802,340.70x = 457,660,835,574.26
  5. Step 5: Solve for x
    x = 457,660,835,574.26/802,340.70
  6. Step 6: Final answer
    x = 570,407.10

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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.