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Finding the Fourth Proportional to 576,043.70, 864,065.55 and 310,323.20

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Solution

The fourth proportional to 576,043.70, 864,065.55 and 310,323.20 is: 465,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,043.70 : 864,065.55 = 310,323.20 : x
  2. Step 2: Convert to fraction form
    576,043.70/864,065.55 = 310,323.20/x
  3. Step 3: Cross multiply
    576,043.70x = 864,065.55 × 310,323.20
  4. Step 4: Simplify right side
    576,043.70x = 268,139,586,485.76
  5. Step 5: Solve for x
    x = 268,139,586,485.76/576,043.70
  6. Step 6: Final answer
    x = 465,484.80

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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.