Home / 917,160.96-1,265,675.52-509,260.80

Finding the Fourth Proportional to 917,160.96, 1,265,675.52 and 509,260.80

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Solution

The fourth proportional to 917,160.96, 1,265,675.52 and 509,260.80 is: 702,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,160.96 : 1,265,675.52 = 509,260.80 : x
  2. Step 2: Convert to fraction form
    917,160.96/1,265,675.52 = 509,260.80/x
  3. Step 3: Cross multiply
    917,160.96x = 1,265,675.52 × 509,260.80
  4. Step 4: Simplify right side
    917,160.96x = 644,558,927,855.62
  5. Step 5: Solve for x
    x = 644,558,927,855.62/917,160.96
  6. Step 6: Final answer
    x = 702,776.24

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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.