Home / 745,803.03-1,118,866.55-272,487.63

Finding the Fourth Proportional to 745,803.03, 1,118,866.55 and 272,487.63

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Solution

The fourth proportional to 745,803.03, 1,118,866.55 and 272,487.63 is: 408,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,803.03 : 1,118,866.55 = 272,487.63 : x
  2. Step 2: Convert to fraction form
    745,803.03/1,118,866.55 = 272,487.63/x
  3. Step 3: Cross multiply
    745,803.03x = 1,118,866.55 × 272,487.63
  4. Step 4: Simplify right side
    745,803.03x = 304,877,294,495.78
  5. Step 5: Solve for x
    x = 304,877,294,495.78/745,803.03
  6. Step 6: Final answer
    x = 408,790.64

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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.