Home / 712,425.08-983,148.05-385,741.65

Finding the Fourth Proportional to 712,425.08, 983,148.05 and 385,741.65

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Solution

The fourth proportional to 712,425.08, 983,148.05 and 385,741.65 is: 532,324.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,425.08 : 983,148.05 = 385,741.65 : x
  2. Step 2: Convert to fraction form
    712,425.08/983,148.05 = 385,741.65/x
  3. Step 3: Cross multiply
    712,425.08x = 983,148.05 × 385,741.65
  4. Step 4: Simplify right side
    712,425.08x = 379,241,147,952.44
  5. Step 5: Solve for x
    x = 379,241,147,952.44/712,425.08
  6. Step 6: Final answer
    x = 532,324.25

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Double scale
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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.