Home / 1,087,624.80-1,631,437.20-488,872.80

Finding the Fourth Proportional to 1,087,624.80, 1,631,437.20 and 488,872.80

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Solution

The fourth proportional to 1,087,624.80, 1,631,437.20 and 488,872.80 is: 733,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,624.80 : 1,631,437.20 = 488,872.80 : x
  2. Step 2: Convert to fraction form
    1,087,624.80/1,631,437.20 = 488,872.80/x
  3. Step 3: Cross multiply
    1,087,624.80x = 1,631,437.20 × 488,872.80
  4. Step 4: Simplify right side
    1,087,624.80x = 797,565,271,988.16
  5. Step 5: Solve for x
    x = 797,565,271,988.16/1,087,624.80
  6. Step 6: Final answer
    x = 733,309.20

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Double scale
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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.