Home / 872,243.68-1,203,730.40-490,269.28

Finding the Fourth Proportional to 872,243.68, 1,203,730.40 and 490,269.28

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Solution

The fourth proportional to 872,243.68, 1,203,730.40 and 490,269.28 is: 676,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,243.68 : 1,203,730.40 = 490,269.28 : x
  2. Step 2: Convert to fraction form
    872,243.68/1,203,730.40 = 490,269.28/x
  3. Step 3: Cross multiply
    872,243.68x = 1,203,730.40 × 490,269.28
  4. Step 4: Simplify right side
    872,243.68x = 590,152,036,522.11
  5. Step 5: Solve for x
    x = 590,152,036,522.11/872,243.68
  6. Step 6: Final answer
    x = 676,590.79

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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.