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Finding the Fourth Proportional to 628,475.76, 867,294.95 and 341,995.77

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Solution

The fourth proportional to 628,475.76, 867,294.95 and 341,995.77 is: 471,953.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,475.76 : 867,294.95 = 341,995.77 : x
  2. Step 2: Convert to fraction form
    628,475.76/867,294.95 = 341,995.77/x
  3. Step 3: Cross multiply
    628,475.76x = 867,294.95 × 341,995.77
  4. Step 4: Simplify right side
    628,475.76x = 296,611,202,532.38
  5. Step 5: Solve for x
    x = 296,611,202,532.38/628,475.76
  6. Step 6: Final answer
    x = 471,953.29

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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.