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Finding the Fourth Proportional to 851,943, 1,175,471.56 and 520,715.04

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Solution

The fourth proportional to 851,943, 1,175,471.56 and 520,715.04 is: 718,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,943 : 1,175,471.56 = 520,715.04 : x
  2. Step 2: Convert to fraction form
    851,943/1,175,471.56 = 520,715.04/x
  3. Step 3: Cross multiply
    851,943x = 1,175,471.56 × 520,715.04
  4. Step 4: Simplify right side
    851,943x = 612,085,720,384.26
  5. Step 5: Solve for x
    x = 612,085,720,384.26/851,943
  6. Step 6: Final answer
    x = 718,458.54

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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.