Home / 740,654.10-1,022,165.60-418,423.35

Finding the Fourth Proportional to 740,654.10, 1,022,165.60 and 418,423.35

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Solution

The fourth proportional to 740,654.10, 1,022,165.60 and 418,423.35 is: 577,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,654.10 : 1,022,165.60 = 418,423.35 : x
  2. Step 2: Convert to fraction form
    740,654.10/1,022,165.60 = 418,423.35/x
  3. Step 3: Cross multiply
    740,654.10x = 1,022,165.60 × 418,423.35
  4. Step 4: Simplify right side
    740,654.10x = 427,697,952,514.64
  5. Step 5: Solve for x
    x = 427,697,952,514.64/740,654.10
  6. Step 6: Final answer
    x = 577,459.78

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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.