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Finding the Fourth Proportional to 385,555.64, 577,327.41 and 310,264.52

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Solution

The fourth proportional to 385,555.64, 577,327.41 and 310,264.52 is: 464,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,555.64 : 577,327.41 = 310,264.52 : x
  2. Step 2: Convert to fraction form
    385,555.64/577,327.41 = 310,264.52/x
  3. Step 3: Cross multiply
    385,555.64x = 577,327.41 × 310,264.52
  4. Step 4: Simplify right side
    385,555.64x = 179,124,208,859.86
  5. Step 5: Solve for x
    x = 179,124,208,859.86/385,555.64
  6. Step 6: Final answer
    x = 464,587.19

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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.