Home / 1,203,695.64-1,805,718.42-642,423.96

Finding the Fourth Proportional to 1,203,695.64, 1,805,718.42 and 642,423.96

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Solution

The fourth proportional to 1,203,695.64, 1,805,718.42 and 642,423.96 is: 963,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,695.64 : 1,805,718.42 = 642,423.96 : x
  2. Step 2: Convert to fraction form
    1,203,695.64/1,805,718.42 = 642,423.96/x
  3. Step 3: Cross multiply
    1,203,695.64x = 1,805,718.42 × 642,423.96
  4. Step 4: Simplify right side
    1,203,695.64x = 1,160,036,778,021.34
  5. Step 5: Solve for x
    x = 1,160,036,778,021.34/1,203,695.64
  6. Step 6: Final answer
    x = 963,729.32

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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.