Home / 1,608,915.45-2,220,373.10-920,803.31

Finding the Fourth Proportional to 1,608,915.45, 2,220,373.10 and 920,803.31

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Solution

The fourth proportional to 1,608,915.45, 2,220,373.10 and 920,803.31 is: 1,270,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608,915.45 : 2,220,373.10 = 920,803.31 : x
  2. Step 2: Convert to fraction form
    1,608,915.45/2,220,373.10 = 920,803.31/x
  3. Step 3: Cross multiply
    1,608,915.45x = 2,220,373.10 × 920,803.31
  4. Step 4: Simplify right side
    1,608,915.45x = 2,044,526,891,115.10
  5. Step 5: Solve for x
    x = 2,044,526,891,115.10/1,608,915.45
  6. Step 6: Final answer
    x = 1,270,748.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.