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Finding the Fourth Proportional to 546,904.80, 820,000.80 and 490,917.60

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Solution

The fourth proportional to 546,904.80, 820,000.80 and 490,917.60 is: 736,056.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,904.80 : 820,000.80 = 490,917.60 : x
  2. Step 2: Convert to fraction form
    546,904.80/820,000.80 = 490,917.60/x
  3. Step 3: Cross multiply
    546,904.80x = 820,000.80 × 490,917.60
  4. Step 4: Simplify right side
    546,904.80x = 402,552,824,734.08
  5. Step 5: Solve for x
    x = 402,552,824,734.08/546,904.80
  6. Step 6: Final answer
    x = 736,056.49

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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.