Home / 480,320.45-720,454.71-243,657.01

Finding the Fourth Proportional to 480,320.45, 720,454.71 and 243,657.01

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Solution

The fourth proportional to 480,320.45, 720,454.71 and 243,657.01 is: 365,472.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,320.45 : 720,454.71 = 243,657.01 : x
  2. Step 2: Convert to fraction form
    480,320.45/720,454.71 = 243,657.01/x
  3. Step 3: Cross multiply
    480,320.45x = 720,454.71 × 243,657.01
  4. Step 4: Simplify right side
    480,320.45x = 175,543,836,876.74
  5. Step 5: Solve for x
    x = 175,543,836,876.74/480,320.45
  6. Step 6: Final answer
    x = 365,472.34

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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.