Home / 916,761.54-1,265,120.57-508,866.91

Finding the Fourth Proportional to 916,761.54, 1,265,120.57 and 508,866.91

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Solution

The fourth proportional to 916,761.54, 1,265,120.57 and 508,866.91 is: 702,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,761.54 : 1,265,120.57 = 508,866.91 : x
  2. Step 2: Convert to fraction form
    916,761.54/1,265,120.57 = 508,866.91/x
  3. Step 3: Cross multiply
    916,761.54x = 1,265,120.57 × 508,866.91
  4. Step 4: Simplify right side
    916,761.54x = 643,777,993,342.71
  5. Step 5: Solve for x
    x = 643,777,993,342.71/916,761.54
  6. Step 6: Final answer
    x = 702,230.58

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1.5x scale

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.