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Finding the Fourth Proportional to 480,436.80, 720,050.40 and 243,844.80

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Solution

The fourth proportional to 480,436.80, 720,050.40 and 243,844.80 is: 365,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,436.80 : 720,050.40 = 243,844.80 : x
  2. Step 2: Convert to fraction form
    480,436.80/720,050.40 = 243,844.80/x
  3. Step 3: Cross multiply
    480,436.80x = 720,050.40 × 243,844.80
  4. Step 4: Simplify right side
    480,436.80x = 175,580,545,777.92
  5. Step 5: Solve for x
    x = 175,580,545,777.92/480,436.80
  6. Step 6: Final answer
    x = 365,460.23

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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.