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Finding the Fourth Proportional to 384,915.60, 577,373.40 and 352,256.40

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Solution

The fourth proportional to 384,915.60, 577,373.40 and 352,256.40 is: 528,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,915.60 : 577,373.40 = 352,256.40 : x
  2. Step 2: Convert to fraction form
    384,915.60/577,373.40 = 352,256.40/x
  3. Step 3: Cross multiply
    384,915.60x = 577,373.40 × 352,256.40
  4. Step 4: Simplify right side
    384,915.60x = 203,383,475,339.76
  5. Step 5: Solve for x
    x = 203,383,475,339.76/384,915.60
  6. Step 6: Final answer
    x = 528,384.60

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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.