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Finding the Fourth Proportional to 385,556.64, 577,328.91 and 310,265.52

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Solution

The fourth proportional to 385,556.64, 577,328.91 and 310,265.52 is: 464,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,556.64 : 577,328.91 = 310,265.52 : x
  2. Step 2: Convert to fraction form
    385,556.64/577,328.91 = 310,265.52/x
  3. Step 3: Cross multiply
    385,556.64x = 577,328.91 × 310,265.52
  4. Step 4: Simplify right side
    385,556.64x = 179,125,254,472.18
  5. Step 5: Solve for x
    x = 179,125,254,472.18/385,556.64
  6. Step 6: Final answer
    x = 464,588.69

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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.