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Finding the Fourth Proportional to 556,013.45, 832,837.52 and 328,063.40

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Solution

The fourth proportional to 556,013.45, 832,837.52 and 328,063.40 is: 491,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,013.45 : 832,837.52 = 328,063.40 : x
  2. Step 2: Convert to fraction form
    556,013.45/832,837.52 = 328,063.40/x
  3. Step 3: Cross multiply
    556,013.45x = 832,837.52 × 328,063.40
  4. Step 4: Simplify right side
    556,013.45x = 273,223,508,458.77
  5. Step 5: Solve for x
    x = 273,223,508,458.77/556,013.45
  6. Step 6: Final answer
    x = 491,397.30

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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.