Home / 480,320.95-720,455.46-243,657.51

Finding the Fourth Proportional to 480,320.95, 720,455.46 and 243,657.51

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Solution

The fourth proportional to 480,320.95, 720,455.46 and 243,657.51 is: 365,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,320.95 : 720,455.46 = 243,657.51 : x
  2. Step 2: Convert to fraction form
    480,320.95/720,455.46 = 243,657.51/x
  3. Step 3: Cross multiply
    480,320.95x = 720,455.46 × 243,657.51
  4. Step 4: Simplify right side
    480,320.95x = 175,544,379,847.23
  5. Step 5: Solve for x
    x = 175,544,379,847.23/480,320.95
  6. Step 6: Final answer
    x = 365,473.09

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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.