Home / 917,254.56-1,265,786.76-509,345.76

Finding the Fourth Proportional to 917,254.56, 1,265,786.76 and 509,345.76

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Solution

The fourth proportional to 917,254.56, 1,265,786.76 and 509,345.76 is: 702,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,254.56 : 1,265,786.76 = 509,345.76 : x
  2. Step 2: Convert to fraction form
    917,254.56/1,265,786.76 = 509,345.76/x
  3. Step 3: Cross multiply
    917,254.56x = 1,265,786.76 × 509,345.76
  4. Step 4: Simplify right side
    917,254.56x = 644,723,119,270.14
  5. Step 5: Solve for x
    x = 644,723,119,270.14/917,254.56
  6. Step 6: Final answer
    x = 702,883.53

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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.