Home / 917,256.44-1,265,771.30-509,384.18

Finding the Fourth Proportional to 917,256.44, 1,265,771.30 and 509,384.18

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Solution

The fourth proportional to 917,256.44, 1,265,771.30 and 509,384.18 is: 702,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,256.44 : 1,265,771.30 = 509,384.18 : x
  2. Step 2: Convert to fraction form
    917,256.44/1,265,771.30 = 509,384.18/x
  3. Step 3: Cross multiply
    917,256.44x = 1,265,771.30 × 509,384.18
  4. Step 4: Simplify right side
    917,256.44x = 644,763,875,718.03
  5. Step 5: Solve for x
    x = 644,763,875,718.03/917,256.44
  6. Step 6: Final answer
    x = 702,926.52

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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.