Home / 1,129,365.84-1,558,080.42-645,671.16

Finding the Fourth Proportional to 1,129,365.84, 1,558,080.42 and 645,671.16

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Solution

The fourth proportional to 1,129,365.84, 1,558,080.42 and 645,671.16 is: 890,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,365.84 : 1,558,080.42 = 645,671.16 : x
  2. Step 2: Convert to fraction form
    1,129,365.84/1,558,080.42 = 645,671.16/x
  3. Step 3: Cross multiply
    1,129,365.84x = 1,558,080.42 × 645,671.16
  4. Step 4: Simplify right side
    1,129,365.84x = 1,006,007,592,154.69
  5. Step 5: Solve for x
    x = 1,006,007,592,154.69/1,129,365.84
  6. Step 6: Final answer
    x = 890,772.11

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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.