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Finding the Fourth Proportional to 674,679.69, 931,072.91 and 368,776.26

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Solution

The fourth proportional to 674,679.69, 931,072.91 and 368,776.26 is: 508,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,679.69 : 931,072.91 = 368,776.26 : x
  2. Step 2: Convert to fraction form
    674,679.69/931,072.91 = 368,776.26/x
  3. Step 3: Cross multiply
    674,679.69x = 931,072.91 × 368,776.26
  4. Step 4: Simplify right side
    674,679.69x = 343,357,583,693.24
  5. Step 5: Solve for x
    x = 343,357,583,693.24/674,679.69
  6. Step 6: Final answer
    x = 508,919.40

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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.