Home / 678,782.54-1,018,602.60-379,459.46

Finding the Fourth Proportional to 678,782.54, 1,018,602.60 and 379,459.46

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Solution

The fourth proportional to 678,782.54, 1,018,602.60 and 379,459.46 is: 569,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,782.54 : 1,018,602.60 = 379,459.46 : x
  2. Step 2: Convert to fraction form
    678,782.54/1,018,602.60 = 379,459.46/x
  3. Step 3: Cross multiply
    678,782.54x = 1,018,602.60 × 379,459.46
  4. Step 4: Simplify right side
    678,782.54x = 386,518,392,550.60
  5. Step 5: Solve for x
    x = 386,518,392,550.60/678,782.54
  6. Step 6: Final answer
    x = 569,428.90

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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.