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Finding the Fourth Proportional to 550,275.52, 759,411.84 and 308,635.60

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Solution

The fourth proportional to 550,275.52, 759,411.84 and 308,635.60 is: 425,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,275.52 : 759,411.84 = 308,635.60 : x
  2. Step 2: Convert to fraction form
    550,275.52/759,411.84 = 308,635.60/x
  3. Step 3: Cross multiply
    550,275.52x = 759,411.84 × 308,635.60
  4. Step 4: Simplify right side
    550,275.52x = 234,381,528,885.50
  5. Step 5: Solve for x
    x = 234,381,528,885.50/550,275.52
  6. Step 6: Final answer
    x = 425,934.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.