Home / 917,805.72-1,265,869.98-804,431.64

Finding the Fourth Proportional to 917,805.72, 1,265,869.98 and 804,431.64

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Solution

The fourth proportional to 917,805.72, 1,265,869.98 and 804,431.64 is: 1,109,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,805.72 : 1,265,869.98 = 804,431.64 : x
  2. Step 2: Convert to fraction form
    917,805.72/1,265,869.98 = 804,431.64/x
  3. Step 3: Cross multiply
    917,805.72x = 1,265,869.98 × 804,431.64
  4. Step 4: Simplify right side
    917,805.72x = 1,018,305,864,038.17
  5. Step 5: Solve for x
    x = 1,018,305,864,038.17/917,805.72
  6. Step 6: Final answer
    x = 1,109,500.46

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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.