Home / 1,520,470.70-2,280,781.94-455,411.28

Finding the Fourth Proportional to 1,520,470.70, 2,280,781.94 and 455,411.28

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Solution

The fourth proportional to 1,520,470.70, 2,280,781.94 and 455,411.28 is: 683,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,470.70 : 2,280,781.94 = 455,411.28 : x
  2. Step 2: Convert to fraction form
    1,520,470.70/2,280,781.94 = 455,411.28/x
  3. Step 3: Cross multiply
    1,520,470.70x = 2,280,781.94 × 455,411.28
  4. Step 4: Simplify right side
    1,520,470.70x = 1,038,693,822,696.28
  5. Step 5: Solve for x
    x = 1,038,693,822,696.28/1,520,470.70
  6. Step 6: Final answer
    x = 683,139.65

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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.