Home / 898,501.56-1,239,957.72-490,629.30

Finding the Fourth Proportional to 898,501.56, 1,239,957.72 and 490,629.30

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Solution

The fourth proportional to 898,501.56, 1,239,957.72 and 490,629.30 is: 677,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,501.56 : 1,239,957.72 = 490,629.30 : x
  2. Step 2: Convert to fraction form
    898,501.56/1,239,957.72 = 490,629.30/x
  3. Step 3: Cross multiply
    898,501.56x = 1,239,957.72 × 490,629.30
  4. Step 4: Simplify right side
    898,501.56x = 608,359,588,193.20
  5. Step 5: Solve for x
    x = 608,359,588,193.20/898,501.56
  6. Step 6: Final answer
    x = 677,082.40

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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.