Home / 898,508.40-1,239,944.24-490,613.80

Finding the Fourth Proportional to 898,508.40, 1,239,944.24 and 490,613.80

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Solution

The fourth proportional to 898,508.40, 1,239,944.24 and 490,613.80 is: 677,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,508.40 : 1,239,944.24 = 490,613.80 : x
  2. Step 2: Convert to fraction form
    898,508.40/1,239,944.24 = 490,613.80/x
  3. Step 3: Cross multiply
    898,508.40x = 1,239,944.24 × 490,613.80
  4. Step 4: Simplify right side
    898,508.40x = 608,333,755,374.51
  5. Step 5: Solve for x
    x = 608,333,755,374.51/898,508.40
  6. Step 6: Final answer
    x = 677,048.49

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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.