Home / 1,287,425.34-1,931,318.44-388,765.17

Finding the Fourth Proportional to 1,287,425.34, 1,931,318.44 and 388,765.17

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Solution

The fourth proportional to 1,287,425.34, 1,931,318.44 and 388,765.17 is: 583,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,425.34 : 1,931,318.44 = 388,765.17 : x
  2. Step 2: Convert to fraction form
    1,287,425.34/1,931,318.44 = 388,765.17/x
  3. Step 3: Cross multiply
    1,287,425.34x = 1,931,318.44 × 388,765.17
  4. Step 4: Simplify right side
    1,287,425.34x = 750,829,340,678.82
  5. Step 5: Solve for x
    x = 750,829,340,678.82/1,287,425.34
  6. Step 6: Final answer
    x = 583,202.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.