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Finding the Fourth Proportional to 767,260, 1,058,818.80 and 427,750.12

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Solution

The fourth proportional to 767,260, 1,058,818.80 and 427,750.12 is: 590,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,260 : 1,058,818.80 = 427,750.12 : x
  2. Step 2: Convert to fraction form
    767,260/1,058,818.80 = 427,750.12/x
  3. Step 3: Cross multiply
    767,260x = 1,058,818.80 × 427,750.12
  4. Step 4: Simplify right side
    767,260x = 452,909,868,758.26
  5. Step 5: Solve for x
    x = 452,909,868,758.26/767,260
  6. Step 6: Final answer
    x = 590,295.17

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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.