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Finding the Fourth Proportional to 838,854.54, 1,157,750.75 and 494,728.30

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Solution

The fourth proportional to 838,854.54, 1,157,750.75 and 494,728.30 is: 682,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,854.54 : 1,157,750.75 = 494,728.30 : x
  2. Step 2: Convert to fraction form
    838,854.54/1,157,750.75 = 494,728.30/x
  3. Step 3: Cross multiply
    838,854.54x = 1,157,750.75 × 494,728.30
  4. Step 4: Simplify right side
    838,854.54x = 572,772,060,371.23
  5. Step 5: Solve for x
    x = 572,772,060,371.23/838,854.54
  6. Step 6: Final answer
    x = 682,802.60

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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.