Home / 1,509,502.57-2,083,127.08-821,189.43

Finding the Fourth Proportional to 1,509,502.57, 2,083,127.08 and 821,189.43

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Solution

The fourth proportional to 1,509,502.57, 2,083,127.08 and 821,189.43 is: 1,133,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,502.57 : 2,083,127.08 = 821,189.43 : x
  2. Step 2: Convert to fraction form
    1,509,502.57/2,083,127.08 = 821,189.43/x
  3. Step 3: Cross multiply
    1,509,502.57x = 2,083,127.08 × 821,189.43
  4. Step 4: Simplify right side
    1,509,502.57x = 1,710,641,939,442.76
  5. Step 5: Solve for x
    x = 1,710,641,939,442.76/1,509,502.57
  6. Step 6: Final answer
    x = 1,133,248.78

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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.