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Finding the Fourth Proportional to 509,990.10, 763,235.55 and 467,999.70

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Solution

The fourth proportional to 509,990.10, 763,235.55 and 467,999.70 is: 700,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,990.10 : 763,235.55 = 467,999.70 : x
  2. Step 2: Convert to fraction form
    509,990.10/763,235.55 = 467,999.70/x
  3. Step 3: Cross multiply
    509,990.10x = 763,235.55 × 467,999.70
  4. Step 4: Simplify right side
    509,990.10x = 357,194,008,429.34
  5. Step 5: Solve for x
    x = 357,194,008,429.34/509,990.10
  6. Step 6: Final answer
    x = 700,394.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.