Home / 1,240,728.84-1,861,102.98-679,457.16

Finding the Fourth Proportional to 1,240,728.84, 1,861,102.98 and 679,457.16

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Solution

The fourth proportional to 1,240,728.84, 1,861,102.98 and 679,457.16 is: 1,019,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,728.84 : 1,861,102.98 = 679,457.16 : x
  2. Step 2: Convert to fraction form
    1,240,728.84/1,861,102.98 = 679,457.16/x
  3. Step 3: Cross multiply
    1,240,728.84x = 1,861,102.98 × 679,457.16
  4. Step 4: Simplify right side
    1,240,728.84x = 1,264,539,745,258.34
  5. Step 5: Solve for x
    x = 1,264,539,745,258.34/1,240,728.84
  6. Step 6: Final answer
    x = 1,019,191.06

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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.