Home / 898,980.39-1,348,461.36-519,659.78

Finding the Fourth Proportional to 898,980.39, 1,348,461.36 and 519,659.78

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Solution

The fourth proportional to 898,980.39, 1,348,461.36 and 519,659.78 is: 779,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,980.39 : 1,348,461.36 = 519,659.78 : x
  2. Step 2: Convert to fraction form
    898,980.39/1,348,461.36 = 519,659.78/x
  3. Step 3: Cross multiply
    898,980.39x = 1,348,461.36 × 519,659.78
  4. Step 4: Simplify right side
    898,980.39x = 700,741,126,933.79
  5. Step 5: Solve for x
    x = 700,741,126,933.79/898,980.39
  6. Step 6: Final answer
    x = 779,484.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.