Home / 787,977.64-1,087,247.94-465,526.12

Finding the Fourth Proportional to 787,977.64, 1,087,247.94 and 465,526.12

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Solution

The fourth proportional to 787,977.64, 1,087,247.94 and 465,526.12 is: 642,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,977.64 : 1,087,247.94 = 465,526.12 : x
  2. Step 2: Convert to fraction form
    787,977.64/1,087,247.94 = 465,526.12/x
  3. Step 3: Cross multiply
    787,977.64x = 1,087,247.94 × 465,526.12
  4. Step 4: Simplify right side
    787,977.64x = 506,142,314,986.19
  5. Step 5: Solve for x
    x = 506,142,314,986.19/787,977.64
  6. Step 6: Final answer
    x = 642,330.81

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1.5x scale

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.