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Finding the Fourth Proportional to 623,712.80, 934,186.80 and 483,015.20

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Solution

The fourth proportional to 623,712.80, 934,186.80 and 483,015.20 is: 723,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,712.80 : 934,186.80 = 483,015.20 : x
  2. Step 2: Convert to fraction form
    623,712.80/934,186.80 = 483,015.20/x
  3. Step 3: Cross multiply
    623,712.80x = 934,186.80 × 483,015.20
  4. Step 4: Simplify right side
    623,712.80x = 451,226,424,039.36
  5. Step 5: Solve for x
    x = 451,226,424,039.36/623,712.80
  6. Step 6: Final answer
    x = 723,452.24

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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.