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Finding the Fourth Proportional to 919,449.84, 1,268,415 and 537,492.72

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Solution

The fourth proportional to 919,449.84, 1,268,415 and 537,492.72 is: 741,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,449.84 : 1,268,415 = 537,492.72 : x
  2. Step 2: Convert to fraction form
    919,449.84/1,268,415 = 537,492.72/x
  3. Step 3: Cross multiply
    919,449.84x = 1,268,415 × 537,492.72
  4. Step 4: Simplify right side
    919,449.84x = 681,763,828,438.80
  5. Step 5: Solve for x
    x = 681,763,828,438.80/919,449.84
  6. Step 6: Final answer
    x = 741,491.05

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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.