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Finding the Fourth Proportional to 567,748.20, 783,482.46 and 309,627.08

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Solution

The fourth proportional to 567,748.20, 783,482.46 and 309,627.08 is: 427,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,748.20 : 783,482.46 = 309,627.08 : x
  2. Step 2: Convert to fraction form
    567,748.20/783,482.46 = 309,627.08/x
  3. Step 3: Cross multiply
    567,748.20x = 783,482.46 × 309,627.08
  4. Step 4: Simplify right side
    567,748.20x = 242,587,382,403.61
  5. Step 5: Solve for x
    x = 242,587,382,403.61/567,748.20
  6. Step 6: Final answer
    x = 427,279.88

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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.