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Finding the Fourth Proportional to 674,808.96, 931,200 and 372,984.96

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Solution

The fourth proportional to 674,808.96, 931,200 and 372,984.96 is: 514,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,808.96 : 931,200 = 372,984.96 : x
  2. Step 2: Convert to fraction form
    674,808.96/931,200 = 372,984.96/x
  3. Step 3: Cross multiply
    674,808.96x = 931,200 × 372,984.96
  4. Step 4: Simplify right side
    674,808.96x = 347,323,594,752
  5. Step 5: Solve for x
    x = 347,323,594,752/674,808.96
  6. Step 6: Final answer
    x = 514,699.15

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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.