Home / 916,705.76-1,265,034.92-508,783.68

Finding the Fourth Proportional to 916,705.76, 1,265,034.92 and 508,783.68

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Solution

The fourth proportional to 916,705.76, 1,265,034.92 and 508,783.68 is: 702,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,705.76 : 1,265,034.92 = 508,783.68 : x
  2. Step 2: Convert to fraction form
    916,705.76/1,265,034.92 = 508,783.68/x
  3. Step 3: Cross multiply
    916,705.76x = 1,265,034.92 × 508,783.68
  4. Step 4: Simplify right side
    916,705.76x = 643,629,119,382.19
  5. Step 5: Solve for x
    x = 643,629,119,382.19/916,705.76
  6. Step 6: Final answer
    x = 702,110.92

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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.