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Finding the Fourth Proportional to 450,000.67, 621,123.40 and 256,510.24

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Solution

The fourth proportional to 450,000.67, 621,123.40 and 256,510.24 is: 354,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,000.67 : 621,123.40 = 256,510.24 : x
  2. Step 2: Convert to fraction form
    450,000.67/621,123.40 = 256,510.24/x
  3. Step 3: Cross multiply
    450,000.67x = 621,123.40 × 256,510.24
  4. Step 4: Simplify right side
    450,000.67x = 159,324,512,046.18
  5. Step 5: Solve for x
    x = 159,324,512,046.18/450,000.67
  6. Step 6: Final answer
    x = 354,053.95

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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.