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Finding the Fourth Proportional to 520,649.37, 779,713.29 and 360,275.72

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Solution

The fourth proportional to 520,649.37, 779,713.29 and 360,275.72 is: 539,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,649.37 : 779,713.29 = 360,275.72 : x
  2. Step 2: Convert to fraction form
    520,649.37/779,713.29 = 360,275.72/x
  3. Step 3: Cross multiply
    520,649.37x = 779,713.29 × 360,275.72
  4. Step 4: Simplify right side
    520,649.37x = 280,911,763,049.75
  5. Step 5: Solve for x
    x = 280,911,763,049.75/520,649.37
  6. Step 6: Final answer
    x = 539,541.16

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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.