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Finding the Fourth Proportional to 825,580.79, 1,139,426.03 and 503,477.74

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Solution

The fourth proportional to 825,580.79, 1,139,426.03 and 503,477.74 is: 694,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,580.79 : 1,139,426.03 = 503,477.74 : x
  2. Step 2: Convert to fraction form
    825,580.79/1,139,426.03 = 503,477.74/x
  3. Step 3: Cross multiply
    825,580.79x = 1,139,426.03 × 503,477.74
  4. Step 4: Simplify right side
    825,580.79x = 573,675,642,481.57
  5. Step 5: Solve for x
    x = 573,675,642,481.57/825,580.79
  6. Step 6: Final answer
    x = 694,875.23

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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.