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Finding the Fourth Proportional to 546,833.10, 821,804.85 and 478,404.30

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Solution

The fourth proportional to 546,833.10, 821,804.85 and 478,404.30 is: 718,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,833.10 : 821,804.85 = 478,404.30 : x
  2. Step 2: Convert to fraction form
    546,833.10/821,804.85 = 478,404.30/x
  3. Step 3: Cross multiply
    546,833.10x = 821,804.85 × 478,404.30
  4. Step 4: Simplify right side
    546,833.10x = 393,154,974,000.86
  5. Step 5: Solve for x
    x = 393,154,974,000.86/546,833.10
  6. Step 6: Final answer
    x = 718,967.04

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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.