Home / 917,583-1,266,264.54-515,183.64

Finding the Fourth Proportional to 917,583, 1,266,264.54 and 515,183.64

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Solution

The fourth proportional to 917,583, 1,266,264.54 and 515,183.64 is: 710,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,583 : 1,266,264.54 = 515,183.64 : x
  2. Step 2: Convert to fraction form
    917,583/1,266,264.54 = 515,183.64/x
  3. Step 3: Cross multiply
    917,583x = 1,266,264.54 × 515,183.64
  4. Step 4: Simplify right side
    917,583x = 652,358,774,920.13
  5. Step 5: Solve for x
    x = 652,358,774,920.13/917,583
  6. Step 6: Final answer
    x = 710,953.42

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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.