Home / 1,041,885.65-1,438,025.60-678,661.40

Finding the Fourth Proportional to 1,041,885.65, 1,438,025.60 and 678,661.40

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Solution

The fourth proportional to 1,041,885.65, 1,438,025.60 and 678,661.40 is: 936,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,885.65 : 1,438,025.60 = 678,661.40 : x
  2. Step 2: Convert to fraction form
    1,041,885.65/1,438,025.60 = 678,661.40/x
  3. Step 3: Cross multiply
    1,041,885.65x = 1,438,025.60 × 678,661.40
  4. Step 4: Simplify right side
    1,041,885.65x = 975,932,472,223.56
  5. Step 5: Solve for x
    x = 975,932,472,223.56/1,041,885.65
  6. Step 6: Final answer
    x = 936,698.25

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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.