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Finding the Fourth Proportional to 586,630.40, 879,254.40 and 306,003.20

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Solution

The fourth proportional to 586,630.40, 879,254.40 and 306,003.20 is: 458,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,630.40 : 879,254.40 = 306,003.20 : x
  2. Step 2: Convert to fraction form
    586,630.40/879,254.40 = 306,003.20/x
  3. Step 3: Cross multiply
    586,630.40x = 879,254.40 × 306,003.20
  4. Step 4: Simplify right side
    586,630.40x = 269,054,660,014.08
  5. Step 5: Solve for x
    x = 269,054,660,014.08/586,630.40
  6. Step 6: Final answer
    x = 458,644.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.