Home / 930,256.80-1,395,385.20-917,815.20

Finding the Fourth Proportional to 930,256.80, 1,395,385.20 and 917,815.20

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Solution

The fourth proportional to 930,256.80, 1,395,385.20 and 917,815.20 is: 1,376,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,256.80 : 1,395,385.20 = 917,815.20 : x
  2. Step 2: Convert to fraction form
    930,256.80/1,395,385.20 = 917,815.20/x
  3. Step 3: Cross multiply
    930,256.80x = 1,395,385.20 × 917,815.20
  4. Step 4: Simplify right side
    930,256.80x = 1,280,705,746,415.04
  5. Step 5: Solve for x
    x = 1,280,705,746,415.04/930,256.80
  6. Step 6: Final answer
    x = 1,376,722.80

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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.