Home / 1,140,945.32-1,708,895.23-780,261.46

Finding the Fourth Proportional to 1,140,945.32, 1,708,895.23 and 780,261.46

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Solution

The fourth proportional to 1,140,945.32, 1,708,895.23 and 780,261.46 is: 1,168,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,945.32 : 1,708,895.23 = 780,261.46 : x
  2. Step 2: Convert to fraction form
    1,140,945.32/1,708,895.23 = 780,261.46/x
  3. Step 3: Cross multiply
    1,140,945.32x = 1,708,895.23 × 780,261.46
  4. Step 4: Simplify right side
    1,140,945.32x = 1,333,385,087,146.84
  5. Step 5: Solve for x
    x = 1,333,385,087,146.84/1,140,945.32
  6. Step 6: Final answer
    x = 1,168,666.95

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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.