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Finding the Fourth Proportional to 540,265.20, 809,328.60 and 473,780.40

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Solution

The fourth proportional to 540,265.20, 809,328.60 and 473,780.40 is: 709,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,265.20 : 809,328.60 = 473,780.40 : x
  2. Step 2: Convert to fraction form
    540,265.20/809,328.60 = 473,780.40/x
  3. Step 3: Cross multiply
    540,265.20x = 809,328.60 × 473,780.40
  4. Step 4: Simplify right side
    540,265.20x = 383,444,027,839.44
  5. Step 5: Solve for x
    x = 383,444,027,839.44/540,265.20
  6. Step 6: Final answer
    x = 709,732.98

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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.