Home / 678,716.02-1,017,981.06-375,670.72

Finding the Fourth Proportional to 678,716.02, 1,017,981.06 and 375,670.72

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Solution

The fourth proportional to 678,716.02, 1,017,981.06 and 375,670.72 is: 563,454.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,716.02 : 1,017,981.06 = 375,670.72 : x
  2. Step 2: Convert to fraction form
    678,716.02/1,017,981.06 = 375,670.72/x
  3. Step 3: Cross multiply
    678,716.02x = 1,017,981.06 × 375,670.72
  4. Step 4: Simplify right side
    678,716.02x = 382,425,677,756.56
  5. Step 5: Solve for x
    x = 382,425,677,756.56/678,716.02
  6. Step 6: Final answer
    x = 563,454.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.