Home / 1,490,230.89-2,056,839.10-909,329.57

Finding the Fourth Proportional to 1,490,230.89, 2,056,839.10 and 909,329.57

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Solution

The fourth proportional to 1,490,230.89, 2,056,839.10 and 909,329.57 is: 1,255,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,230.89 : 2,056,839.10 = 909,329.57 : x
  2. Step 2: Convert to fraction form
    1,490,230.89/2,056,839.10 = 909,329.57/x
  3. Step 3: Cross multiply
    1,490,230.89x = 2,056,839.10 × 909,329.57
  4. Step 4: Simplify right side
    1,490,230.89x = 1,870,344,614,362.19
  5. Step 5: Solve for x
    x = 1,870,344,614,362.19/1,490,230.89
  6. Step 6: Final answer
    x = 1,255,070.36

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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.