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Finding the Fourth Proportional to 922,754, 1,273,478.28 and 520,423.76

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Solution

The fourth proportional to 922,754, 1,273,478.28 and 520,423.76 is: 718,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,754 : 1,273,478.28 = 520,423.76 : x
  2. Step 2: Convert to fraction form
    922,754/1,273,478.28 = 520,423.76/x
  3. Step 3: Cross multiply
    922,754x = 1,273,478.28 × 520,423.76
  4. Step 4: Simplify right side
    922,754x = 662,748,354,755.93
  5. Step 5: Solve for x
    x = 662,748,354,755.93/922,754
  6. Step 6: Final answer
    x = 718,228.64

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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.