Home / 674,918.25-931,406.63-373,131.69

Finding the Fourth Proportional to 674,918.25, 931,406.63 and 373,131.69

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Solution

The fourth proportional to 674,918.25, 931,406.63 and 373,131.69 is: 514,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,918.25 : 931,406.63 = 373,131.69 : x
  2. Step 2: Convert to fraction form
    674,918.25/931,406.63 = 373,131.69/x
  3. Step 3: Cross multiply
    674,918.25x = 931,406.63 × 373,131.69
  4. Step 4: Simplify right side
    674,918.25x = 347,537,329,929.11
  5. Step 5: Solve for x
    x = 347,537,329,929.11/674,918.25
  6. Step 6: Final answer
    x = 514,932.48

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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.