Home / 917,256.69-1,265,771.61-509,384.43

Finding the Fourth Proportional to 917,256.69, 1,265,771.61 and 509,384.43

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Solution

The fourth proportional to 917,256.69, 1,265,771.61 and 509,384.43 is: 702,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,256.69 : 1,265,771.61 = 509,384.43 : x
  2. Step 2: Convert to fraction form
    917,256.69/1,265,771.61 = 509,384.43/x
  3. Step 3: Cross multiply
    917,256.69x = 1,265,771.61 × 509,384.43
  4. Step 4: Simplify right side
    917,256.69x = 644,764,350,070.03
  5. Step 5: Solve for x
    x = 644,764,350,070.03/917,256.69
  6. Step 6: Final answer
    x = 702,926.84

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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.