Home / 767,422.80-1,058,259.06-509,209.38

Finding the Fourth Proportional to 767,422.80, 1,058,259.06 and 509,209.38

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Solution

The fourth proportional to 767,422.80, 1,058,259.06 and 509,209.38 is: 702,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,422.80 : 1,058,259.06 = 509,209.38 : x
  2. Step 2: Convert to fraction form
    767,422.80/1,058,259.06 = 509,209.38/x
  3. Step 3: Cross multiply
    767,422.80x = 1,058,259.06 × 509,209.38
  4. Step 4: Simplify right side
    767,422.80x = 538,875,439,821.98
  5. Step 5: Solve for x
    x = 538,875,439,821.98/767,422.80
  6. Step 6: Final answer
    x = 702,188.47

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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.