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Finding the Fourth Proportional to 510,278.56, 770,210.68 and 510,278.56

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Solution

The fourth proportional to 510,278.56, 770,210.68 and 510,278.56 is: 770,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,278.56 : 770,210.68 = 510,278.56 : x
  2. Step 2: Convert to fraction form
    510,278.56/770,210.68 = 510,278.56/x
  3. Step 3: Cross multiply
    510,278.56x = 770,210.68 × 510,278.56
  4. Step 4: Simplify right side
    510,278.56x = 393,021,996,687.02
  5. Step 5: Solve for x
    x = 393,021,996,687.02/510,278.56
  6. Step 6: Final answer
    x = 770,210.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.