Home / 457,269.60-685,904.40-448,521.60

Finding the Fourth Proportional to 457,269.60, 685,904.40 and 448,521.60

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Solution

The fourth proportional to 457,269.60, 685,904.40 and 448,521.60 is: 672,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,269.60 : 685,904.40 = 448,521.60 : x
  2. Step 2: Convert to fraction form
    457,269.60/685,904.40 = 448,521.60/x
  3. Step 3: Cross multiply
    457,269.60x = 685,904.40 × 448,521.60
  4. Step 4: Simplify right side
    457,269.60x = 307,642,938,935.04
  5. Step 5: Solve for x
    x = 307,642,938,935.04/457,269.60
  6. Step 6: Final answer
    x = 672,782.40

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Similar ratio
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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.