Home / 885,128.12-1,221,266.85-503,124.83

Finding the Fourth Proportional to 885,128.12, 1,221,266.85 and 503,124.83

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Solution

The fourth proportional to 885,128.12, 1,221,266.85 and 503,124.83 is: 694,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,128.12 : 1,221,266.85 = 503,124.83 : x
  2. Step 2: Convert to fraction form
    885,128.12/1,221,266.85 = 503,124.83/x
  3. Step 3: Cross multiply
    885,128.12x = 1,221,266.85 × 503,124.83
  4. Step 4: Simplify right side
    885,128.12x = 614,449,674,764.30
  5. Step 5: Solve for x
    x = 614,449,674,764.30/885,128.12
  6. Step 6: Final answer
    x = 694,192.92

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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.