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Finding the Fourth Proportional to 556,998.48, 835,677.34 and 257,675.12

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Solution

The fourth proportional to 556,998.48, 835,677.34 and 257,675.12 is: 386,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,998.48 : 835,677.34 = 257,675.12 : x
  2. Step 2: Convert to fraction form
    556,998.48/835,677.34 = 257,675.12/x
  3. Step 3: Cross multiply
    556,998.48x = 835,677.34 × 257,675.12
  4. Step 4: Simplify right side
    556,998.48x = 215,333,258,865.78
  5. Step 5: Solve for x
    x = 215,333,258,865.78/556,998.48
  6. Step 6: Final answer
    x = 386,595.77

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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.