Home / 990,927.16-1,367,433.57-561,210.43

Finding the Fourth Proportional to 990,927.16, 1,367,433.57 and 561,210.43

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Solution

The fourth proportional to 990,927.16, 1,367,433.57 and 561,210.43 is: 774,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,927.16 : 1,367,433.57 = 561,210.43 : x
  2. Step 2: Convert to fraction form
    990,927.16/1,367,433.57 = 561,210.43/x
  3. Step 3: Cross multiply
    990,927.16x = 1,367,433.57 × 561,210.43
  4. Step 4: Simplify right side
    990,927.16x = 767,417,981,816.14
  5. Step 5: Solve for x
    x = 767,417,981,816.14/990,927.16
  6. Step 6: Final answer
    x = 774,444.39

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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.