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Finding the Fourth Proportional to 503,869.60, 695,288.46 and 310,246.60

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Solution

The fourth proportional to 503,869.60, 695,288.46 and 310,246.60 is: 428,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,869.60 : 695,288.46 = 310,246.60 : x
  2. Step 2: Convert to fraction form
    503,869.60/695,288.46 = 310,246.60/x
  3. Step 3: Cross multiply
    503,869.60x = 695,288.46 × 310,246.60
  4. Step 4: Simplify right side
    503,869.60x = 215,710,880,734.24
  5. Step 5: Solve for x
    x = 215,710,880,734.24/503,869.60
  6. Step 6: Final answer
    x = 428,108.54

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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.