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Finding the Fourth Proportional to 562,579.78, 776,362.57 and 304,456.76

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Solution

The fourth proportional to 562,579.78, 776,362.57 and 304,456.76 is: 420,151.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,579.78 : 776,362.57 = 304,456.76 : x
  2. Step 2: Convert to fraction form
    562,579.78/776,362.57 = 304,456.76/x
  3. Step 3: Cross multiply
    562,579.78x = 776,362.57 × 304,456.76
  4. Step 4: Simplify right side
    562,579.78x = 236,368,830,915.88
  5. Step 5: Solve for x
    x = 236,368,830,915.88/562,579.78
  6. Step 6: Final answer
    x = 420,151.66

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Double scale
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Similar ratio
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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.