Home / 917,170.96-1,265,689.32-509,270.80

Finding the Fourth Proportional to 917,170.96, 1,265,689.32 and 509,270.80

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Solution

The fourth proportional to 917,170.96, 1,265,689.32 and 509,270.80 is: 702,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,170.96 : 1,265,689.32 = 509,270.80 : x
  2. Step 2: Convert to fraction form
    917,170.96/1,265,689.32 = 509,270.80/x
  3. Step 3: Cross multiply
    917,170.96x = 1,265,689.32 × 509,270.80
  4. Step 4: Simplify right side
    917,170.96x = 644,578,612,547.86
  5. Step 5: Solve for x
    x = 644,578,612,547.86/917,170.96
  6. Step 6: Final answer
    x = 702,790.04

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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.