Home / 520,280.13-780,389.06-141,192.47

Finding the Fourth Proportional to 520,280.13, 780,389.06 and 141,192.47

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Solution

The fourth proportional to 520,280.13, 780,389.06 and 141,192.47 is: 211,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,280.13 : 780,389.06 = 141,192.47 : x
  2. Step 2: Convert to fraction form
    520,280.13/780,389.06 = 141,192.47/x
  3. Step 3: Cross multiply
    520,280.13x = 780,389.06 × 141,192.47
  4. Step 4: Simplify right side
    520,280.13x = 110,185,058,236.42
  5. Step 5: Solve for x
    x = 110,185,058,236.42/520,280.13
  6. Step 6: Final answer
    x = 211,780.25

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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.