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Finding the Fourth Proportional to 885,089.70, 1,328,618.70 and 548,510.40

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Solution

The fourth proportional to 885,089.70, 1,328,618.70 and 548,510.40 is: 823,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,089.70 : 1,328,618.70 = 548,510.40 : x
  2. Step 2: Convert to fraction form
    885,089.70/1,328,618.70 = 548,510.40/x
  3. Step 3: Cross multiply
    885,089.70x = 1,328,618.70 × 548,510.40
  4. Step 4: Simplify right side
    885,089.70x = 728,761,174,584.48
  5. Step 5: Solve for x
    x = 728,761,174,584.48/885,089.70
  6. Step 6: Final answer
    x = 823,375.50

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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.