Home / 898,579.96-1,240,091-490,719.76

Finding the Fourth Proportional to 898,579.96, 1,240,091 and 490,719.76

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Solution

The fourth proportional to 898,579.96, 1,240,091 and 490,719.76 is: 677,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,579.96 : 1,240,091 = 490,719.76 : x
  2. Step 2: Convert to fraction form
    898,579.96/1,240,091 = 490,719.76/x
  3. Step 3: Cross multiply
    898,579.96x = 1,240,091 × 490,719.76
  4. Step 4: Simplify right side
    898,579.96x = 608,537,157,898.16
  5. Step 5: Solve for x
    x = 608,537,157,898.16/898,579.96
  6. Step 6: Final answer
    x = 677,220.93

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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.