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Finding the Fourth Proportional to 634,302.40, 875,336.88 and 347,827.12

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Solution

The fourth proportional to 634,302.40, 875,336.88 and 347,827.12 is: 480,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,302.40 : 875,336.88 = 347,827.12 : x
  2. Step 2: Convert to fraction form
    634,302.40/875,336.88 = 347,827.12/x
  3. Step 3: Cross multiply
    634,302.40x = 875,336.88 × 347,827.12
  4. Step 4: Simplify right side
    634,302.40x = 304,465,906,000.19
  5. Step 5: Solve for x
    x = 304,465,906,000.19/634,302.40
  6. Step 6: Final answer
    x = 480,001.19

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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.