Home / 1,188,386.10-1,639,941.66-679,088.34

Finding the Fourth Proportional to 1,188,386.10, 1,639,941.66 and 679,088.34

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Solution

The fourth proportional to 1,188,386.10, 1,639,941.66 and 679,088.34 is: 937,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,386.10 : 1,639,941.66 = 679,088.34 : x
  2. Step 2: Convert to fraction form
    1,188,386.10/1,639,941.66 = 679,088.34/x
  3. Step 3: Cross multiply
    1,188,386.10x = 1,639,941.66 × 679,088.34
  4. Step 4: Simplify right side
    1,188,386.10x = 1,113,665,259,586.24
  5. Step 5: Solve for x
    x = 1,113,665,259,586.24/1,188,386.10
  6. Step 6: Final answer
    x = 937,124.10

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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.