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Finding the Fourth Proportional to 718,567.84, 1,078,085.04 and 344,620

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Solution

The fourth proportional to 718,567.84, 1,078,085.04 and 344,620 is: 517,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,567.84 : 1,078,085.04 = 344,620 : x
  2. Step 2: Convert to fraction form
    718,567.84/1,078,085.04 = 344,620/x
  3. Step 3: Cross multiply
    718,567.84x = 1,078,085.04 × 344,620
  4. Step 4: Simplify right side
    718,567.84x = 371,529,666,484.80
  5. Step 5: Solve for x
    x = 371,529,666,484.80/718,567.84
  6. Step 6: Final answer
    x = 517,041.88

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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.