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Finding the Fourth Proportional to 545,854.16, 818,929.48 and 309,362.92

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Solution

The fourth proportional to 545,854.16, 818,929.48 and 309,362.92 is: 464,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,854.16 : 818,929.48 = 309,362.92 : x
  2. Step 2: Convert to fraction form
    545,854.16/818,929.48 = 309,362.92/x
  3. Step 3: Cross multiply
    545,854.16x = 818,929.48 × 309,362.92
  4. Step 4: Simplify right side
    545,854.16x = 253,346,415,206.88
  5. Step 5: Solve for x
    x = 253,346,415,206.88/545,854.16
  6. Step 6: Final answer
    x = 464,128.40

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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.