Home / 838,672.25-1,157,416.29-631,569.89

Finding the Fourth Proportional to 838,672.25, 1,157,416.29 and 631,569.89

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Solution

The fourth proportional to 838,672.25, 1,157,416.29 and 631,569.89 is: 871,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,672.25 : 1,157,416.29 = 631,569.89 : x
  2. Step 2: Convert to fraction form
    838,672.25/1,157,416.29 = 631,569.89/x
  3. Step 3: Cross multiply
    838,672.25x = 1,157,416.29 × 631,569.89
  4. Step 4: Simplify right side
    838,672.25x = 730,989,278,959.51
  5. Step 5: Solve for x
    x = 730,989,278,959.51/838,672.25
  6. Step 6: Final answer
    x = 871,603.04

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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.