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Finding the Fourth Proportional to 635,706.80, 877,271.22 and 345,315.73

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Solution

The fourth proportional to 635,706.80, 877,271.22 and 345,315.73 is: 476,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,706.80 : 877,271.22 = 345,315.73 : x
  2. Step 2: Convert to fraction form
    635,706.80/877,271.22 = 345,315.73/x
  3. Step 3: Cross multiply
    635,706.80x = 877,271.22 × 345,315.73
  4. Step 4: Simplify right side
    635,706.80x = 302,935,549,549.11
  5. Step 5: Solve for x
    x = 302,935,549,549.11/635,706.80
  6. Step 6: Final answer
    x = 476,533.44

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1.5x scale

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.