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Finding the Fourth Proportional to 611,659.13, 844,089.62 and 343,387.13

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Solution

The fourth proportional to 611,659.13, 844,089.62 and 343,387.13 is: 473,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,659.13 : 844,089.62 = 343,387.13 : x
  2. Step 2: Convert to fraction form
    611,659.13/844,089.62 = 343,387.13/x
  3. Step 3: Cross multiply
    611,659.13x = 844,089.62 × 343,387.13
  4. Step 4: Simplify right side
    611,659.13x = 289,849,506,137.21
  5. Step 5: Solve for x
    x = 289,849,506,137.21/611,659.13
  6. Step 6: Final answer
    x = 473,874.25

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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.