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Finding the Fourth Proportional to 589,781.80, 883,699.90 and 340,028.20

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Solution

The fourth proportional to 589,781.80, 883,699.90 and 340,028.20 is: 509,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,781.80 : 883,699.90 = 340,028.20 : x
  2. Step 2: Convert to fraction form
    589,781.80/883,699.90 = 340,028.20/x
  3. Step 3: Cross multiply
    589,781.80x = 883,699.90 × 340,028.20
  4. Step 4: Simplify right side
    589,781.80x = 300,482,886,337.18
  5. Step 5: Solve for x
    x = 300,482,886,337.18/589,781.80
  6. Step 6: Final answer
    x = 509,481.45

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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.