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Finding the Fourth Proportional to 921,483.92, 1,381,655.64 and 359,858

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Solution

The fourth proportional to 921,483.92, 1,381,655.64 and 359,858 is: 539,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,483.92 : 1,381,655.64 = 359,858 : x
  2. Step 2: Convert to fraction form
    921,483.92/1,381,655.64 = 359,858/x
  3. Step 3: Cross multiply
    921,483.92x = 1,381,655.64 × 359,858
  4. Step 4: Simplify right side
    921,483.92x = 497,199,835,299.12
  5. Step 5: Solve for x
    x = 497,199,835,299.12/921,483.92
  6. Step 6: Final answer
    x = 539,564.31

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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.