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Finding the Fourth Proportional to 880,644.40, 1,320,091.80 and 406,502.80

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Solution

The fourth proportional to 880,644.40, 1,320,091.80 and 406,502.80 is: 609,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,644.40 : 1,320,091.80 = 406,502.80 : x
  2. Step 2: Convert to fraction form
    880,644.40/1,320,091.80 = 406,502.80/x
  3. Step 3: Cross multiply
    880,644.40x = 1,320,091.80 × 406,502.80
  4. Step 4: Simplify right side
    880,644.40x = 536,621,012,957.04
  5. Step 5: Solve for x
    x = 536,621,012,957.04/880,644.40
  6. Step 6: Final answer
    x = 609,350.39

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1.5x scale

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.