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Finding the Fourth Proportional to 890,992.80, 1,229,555.16 and 503,802

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Solution

The fourth proportional to 890,992.80, 1,229,555.16 and 503,802 is: 695,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,992.80 : 1,229,555.16 = 503,802 : x
  2. Step 2: Convert to fraction form
    890,992.80/1,229,555.16 = 503,802/x
  3. Step 3: Cross multiply
    890,992.80x = 1,229,555.16 × 503,802
  4. Step 4: Simplify right side
    890,992.80x = 619,452,348,718.32
  5. Step 5: Solve for x
    x = 619,452,348,718.32/890,992.80
  6. Step 6: Final answer
    x = 695,238.33

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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.