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Finding the Fourth Proportional to 673,820.02, 928,653.74 and 558,491.30

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Solution

The fourth proportional to 673,820.02, 928,653.74 and 558,491.30 is: 769,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,820.02 : 928,653.74 = 558,491.30 : x
  2. Step 2: Convert to fraction form
    673,820.02/928,653.74 = 558,491.30/x
  3. Step 3: Cross multiply
    673,820.02x = 928,653.74 × 558,491.30
  4. Step 4: Simplify right side
    673,820.02x = 518,645,036,296.45
  5. Step 5: Solve for x
    x = 518,645,036,296.45/673,820.02
  6. Step 6: Final answer
    x = 769,708.56

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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.