Home / 820,088.81-1,229,135.91-580,271.81

Finding the Fourth Proportional to 820,088.81, 1,229,135.91 and 580,271.81

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Solution

The fourth proportional to 820,088.81, 1,229,135.91 and 580,271.81 is: 869,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,088.81 : 1,229,135.91 = 580,271.81 : x
  2. Step 2: Convert to fraction form
    820,088.81/1,229,135.91 = 580,271.81/x
  3. Step 3: Cross multiply
    820,088.81x = 1,229,135.91 × 580,271.81
  4. Step 4: Simplify right side
    820,088.81x = 713,232,918,911.90
  5. Step 5: Solve for x
    x = 713,232,918,911.90/820,088.81
  6. Step 6: Final answer
    x = 869,702.04

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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.