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Finding the Fourth Proportional to 546,985.20, 820,477.80 and 346,218.60

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Solution

The fourth proportional to 546,985.20, 820,477.80 and 346,218.60 is: 519,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,985.20 : 820,477.80 = 346,218.60 : x
  2. Step 2: Convert to fraction form
    546,985.20/820,477.80 = 346,218.60/x
  3. Step 3: Cross multiply
    546,985.20x = 820,477.80 × 346,218.60
  4. Step 4: Simplify right side
    546,985.20x = 284,064,675,247.08
  5. Step 5: Solve for x
    x = 284,064,675,247.08/546,985.20
  6. Step 6: Final answer
    x = 519,327.90

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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.