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Finding the Fourth Proportional to 587,288.40, 880,932.60 and 520,803.60

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Solution

The fourth proportional to 587,288.40, 880,932.60 and 520,803.60 is: 781,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,288.40 : 880,932.60 = 520,803.60 : x
  2. Step 2: Convert to fraction form
    587,288.40/880,932.60 = 520,803.60/x
  3. Step 3: Cross multiply
    587,288.40x = 880,932.60 × 520,803.60
  4. Step 4: Simplify right side
    587,288.40x = 458,792,869,437.36
  5. Step 5: Solve for x
    x = 458,792,869,437.36/587,288.40
  6. Step 6: Final answer
    x = 781,205.40

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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.