Home / 807,673.44-1,113,833.36-638,312.16

Finding the Fourth Proportional to 807,673.44, 1,113,833.36 and 638,312.16

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Solution

The fourth proportional to 807,673.44, 1,113,833.36 and 638,312.16 is: 880,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,673.44 : 1,113,833.36 = 638,312.16 : x
  2. Step 2: Convert to fraction form
    807,673.44/1,113,833.36 = 638,312.16/x
  3. Step 3: Cross multiply
    807,673.44x = 1,113,833.36 × 638,312.16
  4. Step 4: Simplify right side
    807,673.44x = 710,973,377,901.66
  5. Step 5: Solve for x
    x = 710,973,377,901.66/807,673.44
  6. Step 6: Final answer
    x = 880,273.32

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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.