Home / 1,520,472.21-2,280,784.19-455,412.80

Finding the Fourth Proportional to 1,520,472.21, 2,280,784.19 and 455,412.80

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Solution

The fourth proportional to 1,520,472.21, 2,280,784.19 and 455,412.80 is: 683,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,472.21 : 2,280,784.19 = 455,412.80 : x
  2. Step 2: Convert to fraction form
    1,520,472.21/2,280,784.19 = 455,412.80/x
  3. Step 3: Cross multiply
    1,520,472.21x = 2,280,784.19 × 455,412.80
  4. Step 4: Simplify right side
    1,520,472.21x = 1,038,698,300,482.65
  5. Step 5: Solve for x
    x = 1,038,698,300,482.65/1,520,472.21
  6. Step 6: Final answer
    x = 683,141.92

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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.