Home / 784,402.32-1,176,448.53-215,636.66

Finding the Fourth Proportional to 784,402.32, 1,176,448.53 and 215,636.66

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Solution

The fourth proportional to 784,402.32, 1,176,448.53 and 215,636.66 is: 323,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,402.32 : 1,176,448.53 = 215,636.66 : x
  2. Step 2: Convert to fraction form
    784,402.32/1,176,448.53 = 215,636.66/x
  3. Step 3: Cross multiply
    784,402.32x = 1,176,448.53 × 215,636.66
  4. Step 4: Simplify right side
    784,402.32x = 253,685,425,788.87
  5. Step 5: Solve for x
    x = 253,685,425,788.87/784,402.32
  6. Step 6: Final answer
    x = 323,412.39

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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.