Home / 802,721.84-1,107,790.12-480,369.60

Finding the Fourth Proportional to 802,721.84, 1,107,790.12 and 480,369.60

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Solution

The fourth proportional to 802,721.84, 1,107,790.12 and 480,369.60 is: 662,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,721.84 : 1,107,790.12 = 480,369.60 : x
  2. Step 2: Convert to fraction form
    802,721.84/1,107,790.12 = 480,369.60/x
  3. Step 3: Cross multiply
    802,721.84x = 1,107,790.12 × 480,369.60
  4. Step 4: Simplify right side
    802,721.84x = 532,148,696,828.35
  5. Step 5: Solve for x
    x = 532,148,696,828.35/802,721.84
  6. Step 6: Final answer
    x = 662,930.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.