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Finding the Fourth Proportional to 485,349.38, 669,782.67 and 270,484.58

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Solution

The fourth proportional to 485,349.38, 669,782.67 and 270,484.58 is: 373,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,349.38 : 669,782.67 = 270,484.58 : x
  2. Step 2: Convert to fraction form
    485,349.38/669,782.67 = 270,484.58/x
  3. Step 3: Cross multiply
    485,349.38x = 669,782.67 × 270,484.58
  4. Step 4: Simplify right side
    485,349.38x = 181,165,884,186.23
  5. Step 5: Solve for x
    x = 181,165,884,186.23/485,349.38
  6. Step 6: Final answer
    x = 373,269.01

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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.