Home / 898,438.72-1,239,810.01-490,557.76

Finding the Fourth Proportional to 898,438.72, 1,239,810.01 and 490,557.76

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Solution

The fourth proportional to 898,438.72, 1,239,810.01 and 490,557.76 is: 676,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,438.72 : 1,239,810.01 = 490,557.76 : x
  2. Step 2: Convert to fraction form
    898,438.72/1,239,810.01 = 490,557.76/x
  3. Step 3: Cross multiply
    898,438.72x = 1,239,810.01 × 490,557.76
  4. Step 4: Simplify right side
    898,438.72x = 608,198,421,331.18
  5. Step 5: Solve for x
    x = 608,198,421,331.18/898,438.72
  6. Step 6: Final answer
    x = 676,950.37

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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.