Home / 767,159.79-1,058,186.48-509,031.15

Finding the Fourth Proportional to 767,159.79, 1,058,186.48 and 509,031.15

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Solution

The fourth proportional to 767,159.79, 1,058,186.48 and 509,031.15 is: 702,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,159.79 : 1,058,186.48 = 509,031.15 : x
  2. Step 2: Convert to fraction form
    767,159.79/1,058,186.48 = 509,031.15/x
  3. Step 3: Cross multiply
    767,159.79x = 1,058,186.48 × 509,031.15
  4. Step 4: Simplify right side
    767,159.79x = 538,649,878,283.70
  5. Step 5: Solve for x
    x = 538,649,878,283.70/767,159.79
  6. Step 6: Final answer
    x = 702,135.18

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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.