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Finding the Fourth Proportional to 418,545.52, 577,676.60 and 248,746.80

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Solution

The fourth proportional to 418,545.52, 577,676.60 and 248,746.80 is: 343,320.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,545.52 : 577,676.60 = 248,746.80 : x
  2. Step 2: Convert to fraction form
    418,545.52/577,676.60 = 248,746.80/x
  3. Step 3: Cross multiply
    418,545.52x = 577,676.60 × 248,746.80
  4. Step 4: Simplify right side
    418,545.52x = 143,695,205,684.88
  5. Step 5: Solve for x
    x = 143,695,205,684.88/418,545.52
  6. Step 6: Final answer
    x = 343,320.38

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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.