Home / 672,457.05-928,046.33-386,032.50

Finding the Fourth Proportional to 672,457.05, 928,046.33 and 386,032.50

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Solution

The fourth proportional to 672,457.05, 928,046.33 and 386,032.50 is: 532,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,457.05 : 928,046.33 = 386,032.50 : x
  2. Step 2: Convert to fraction form
    672,457.05/928,046.33 = 386,032.50/x
  3. Step 3: Cross multiply
    672,457.05x = 928,046.33 × 386,032.50
  4. Step 4: Simplify right side
    672,457.05x = 358,256,042,955.56
  5. Step 5: Solve for x
    x = 358,256,042,955.56/672,457.05
  6. Step 6: Final answer
    x = 532,756.77

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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.