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Finding the Fourth Proportional to 519,319.60, 716,780.61 and 304,528.86

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Solution

The fourth proportional to 519,319.60, 716,780.61 and 304,528.86 is: 420,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,319.60 : 716,780.61 = 304,528.86 : x
  2. Step 2: Convert to fraction form
    519,319.60/716,780.61 = 304,528.86/x
  3. Step 3: Cross multiply
    519,319.60x = 716,780.61 × 304,528.86
  4. Step 4: Simplify right side
    519,319.60x = 218,280,382,033.41
  5. Step 5: Solve for x
    x = 218,280,382,033.41/519,319.60
  6. Step 6: Final answer
    x = 420,319.94

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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.