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Finding the Fourth Proportional to 385,336.32, 577,256.64 and 283,950.40

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Solution

The fourth proportional to 385,336.32, 577,256.64 and 283,950.40 is: 425,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,336.32 : 577,256.64 = 283,950.40 : x
  2. Step 2: Convert to fraction form
    385,336.32/577,256.64 = 283,950.40/x
  3. Step 3: Cross multiply
    385,336.32x = 577,256.64 × 283,950.40
  4. Step 4: Simplify right side
    385,336.32x = 163,912,253,830.66
  5. Step 5: Solve for x
    x = 163,912,253,830.66/385,336.32
  6. Step 6: Final answer
    x = 425,374.52

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1.5x scale

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.