Home / 838,721.79-1,157,587.76-494,537.20

Finding the Fourth Proportional to 838,721.79, 1,157,587.76 and 494,537.20

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Solution

The fourth proportional to 838,721.79, 1,157,587.76 and 494,537.20 is: 682,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,721.79 : 1,157,587.76 = 494,537.20 : x
  2. Step 2: Convert to fraction form
    838,721.79/1,157,587.76 = 494,537.20/x
  3. Step 3: Cross multiply
    838,721.79x = 1,157,587.76 × 494,537.20
  4. Step 4: Simplify right side
    838,721.79x = 572,470,205,145.27
  5. Step 5: Solve for x
    x = 572,470,205,145.27/838,721.79
  6. Step 6: Final answer
    x = 682,550.77

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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.