Home / 1,155,115.88-1,594,119.70-665,158.17

Finding the Fourth Proportional to 1,155,115.88, 1,594,119.70 and 665,158.17

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Solution

The fourth proportional to 1,155,115.88, 1,594,119.70 and 665,158.17 is: 917,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,115.88 : 1,594,119.70 = 665,158.17 : x
  2. Step 2: Convert to fraction form
    1,155,115.88/1,594,119.70 = 665,158.17/x
  3. Step 3: Cross multiply
    1,155,115.88x = 1,594,119.70 × 665,158.17
  4. Step 4: Simplify right side
    1,155,115.88x = 1,060,341,742,412.95
  5. Step 5: Solve for x
    x = 1,060,341,742,412.95/1,155,115.88
  6. Step 6: Final answer
    x = 917,952.71

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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.