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Finding the Fourth Proportional to 509,124.76, 704,114.50 and 445,351.80

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Solution

The fourth proportional to 509,124.76, 704,114.50 and 445,351.80 is: 615,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,124.76 : 704,114.50 = 445,351.80 : x
  2. Step 2: Convert to fraction form
    509,124.76/704,114.50 = 445,351.80/x
  3. Step 3: Cross multiply
    509,124.76x = 704,114.50 × 445,351.80
  4. Step 4: Simplify right side
    509,124.76x = 313,578,659,981.10
  5. Step 5: Solve for x
    x = 313,578,659,981.10/509,124.76
  6. Step 6: Final answer
    x = 615,917.13

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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.