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Finding the Fourth Proportional to 562,885.60, 776,758.80 and 308,232.40

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Solution

The fourth proportional to 562,885.60, 776,758.80 and 308,232.40 is: 425,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,885.60 : 776,758.80 = 308,232.40 : x
  2. Step 2: Convert to fraction form
    562,885.60/776,758.80 = 308,232.40/x
  3. Step 3: Cross multiply
    562,885.60x = 776,758.80 × 308,232.40
  4. Step 4: Simplify right side
    562,885.60x = 239,422,229,145.12
  5. Step 5: Solve for x
    x = 239,422,229,145.12/562,885.60
  6. Step 6: Final answer
    x = 425,347.94

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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.