Home / 890,030.27-1,227,939.63-502,789.11

Finding the Fourth Proportional to 890,030.27, 1,227,939.63 and 502,789.11

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Solution

The fourth proportional to 890,030.27, 1,227,939.63 and 502,789.11 is: 693,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,030.27 : 1,227,939.63 = 502,789.11 : x
  2. Step 2: Convert to fraction form
    890,030.27/1,227,939.63 = 502,789.11/x
  3. Step 3: Cross multiply
    890,030.27x = 1,227,939.63 × 502,789.11
  4. Step 4: Simplify right side
    890,030.27x = 617,394,673,701.43
  5. Step 5: Solve for x
    x = 617,394,673,701.43/890,030.27
  6. Step 6: Final answer
    x = 693,678.29

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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.