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Finding the Fourth Proportional to 562,430.48, 776,167.44 and 320,736.20

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Solution

The fourth proportional to 562,430.48, 776,167.44 and 320,736.20 is: 442,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,430.48 : 776,167.44 = 320,736.20 : x
  2. Step 2: Convert to fraction form
    562,430.48/776,167.44 = 320,736.20/x
  3. Step 3: Cross multiply
    562,430.48x = 776,167.44 × 320,736.20
  4. Step 4: Simplify right side
    562,430.48x = 248,944,995,269.33
  5. Step 5: Solve for x
    x = 248,944,995,269.33/562,430.48
  6. Step 6: Final answer
    x = 442,623.58

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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.