Home / 678,068.17-1,021,162.75-617,533.83

Finding the Fourth Proportional to 678,068.17, 1,021,162.75 and 617,533.83

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Solution

The fourth proportional to 678,068.17, 1,021,162.75 and 617,533.83 is: 929,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,068.17 : 1,021,162.75 = 617,533.83 : x
  2. Step 2: Convert to fraction form
    678,068.17/1,021,162.75 = 617,533.83/x
  3. Step 3: Cross multiply
    678,068.17x = 1,021,162.75 × 617,533.83
  4. Step 4: Simplify right side
    678,068.17x = 630,602,542,517.00
  5. Step 5: Solve for x
    x = 630,602,542,517.00/678,068.17
  6. Step 6: Final answer
    x = 929,998.74

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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.