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Finding the Fourth Proportional to 870,101.54, 1,200,722.02 and 482,894.47

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Solution

The fourth proportional to 870,101.54, 1,200,722.02 and 482,894.47 is: 666,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,101.54 : 1,200,722.02 = 482,894.47 : x
  2. Step 2: Convert to fraction form
    870,101.54/1,200,722.02 = 482,894.47/x
  3. Step 3: Cross multiply
    870,101.54x = 1,200,722.02 × 482,894.47
  4. Step 4: Simplify right side
    870,101.54x = 579,822,019,256.19
  5. Step 5: Solve for x
    x = 579,822,019,256.19/870,101.54
  6. Step 6: Final answer
    x = 666,384.32

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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.