Home / 1,521,306.39-2,098,787.51-909,109.74

Finding the Fourth Proportional to 1,521,306.39, 2,098,787.51 and 909,109.74

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Solution

The fourth proportional to 1,521,306.39, 2,098,787.51 and 909,109.74 is: 1,254,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,306.39 : 2,098,787.51 = 909,109.74 : x
  2. Step 2: Convert to fraction form
    1,521,306.39/2,098,787.51 = 909,109.74/x
  3. Step 3: Cross multiply
    1,521,306.39x = 2,098,787.51 × 909,109.74
  4. Step 4: Simplify right side
    1,521,306.39x = 1,908,028,169,804.12
  5. Step 5: Solve for x
    x = 1,908,028,169,804.12/1,521,306.39
  6. Step 6: Final answer
    x = 1,254,203.74

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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.