Home / 917,208.29-1,265,779.26-509,316.95

Finding the Fourth Proportional to 917,208.29, 1,265,779.26 and 509,316.95

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Solution

The fourth proportional to 917,208.29, 1,265,779.26 and 509,316.95 is: 702,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,208.29 : 1,265,779.26 = 509,316.95 : x
  2. Step 2: Convert to fraction form
    917,208.29/1,265,779.26 = 509,316.95/x
  3. Step 3: Cross multiply
    917,208.29x = 1,265,779.26 × 509,316.95
  4. Step 4: Simplify right side
    917,208.29x = 644,682,825,747.56
  5. Step 5: Solve for x
    x = 644,682,825,747.56/917,208.29
  6. Step 6: Final answer
    x = 702,875.06

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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.