Home / 890,030.64-1,227,940.14-502,789.49

Finding the Fourth Proportional to 890,030.64, 1,227,940.14 and 502,789.49

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Solution

The fourth proportional to 890,030.64, 1,227,940.14 and 502,789.49 is: 693,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,030.64 : 1,227,940.14 = 502,789.49 : x
  2. Step 2: Convert to fraction form
    890,030.64/1,227,940.14 = 502,789.49/x
  3. Step 3: Cross multiply
    890,030.64x = 1,227,940.14 × 502,789.49
  4. Step 4: Simplify right side
    890,030.64x = 617,395,392,486.89
  5. Step 5: Solve for x
    x = 617,395,392,486.89/890,030.64
  6. Step 6: Final answer
    x = 693,678.81

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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.