Home / 678,719.48-1,018,063.67-341,669.63

Finding the Fourth Proportional to 678,719.48, 1,018,063.67 and 341,669.63

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Solution

The fourth proportional to 678,719.48, 1,018,063.67 and 341,669.63 is: 512,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,719.48 : 1,018,063.67 = 341,669.63 : x
  2. Step 2: Convert to fraction form
    678,719.48/1,018,063.67 = 341,669.63/x
  3. Step 3: Cross multiply
    678,719.48x = 1,018,063.67 × 341,669.63
  4. Step 4: Simplify right side
    678,719.48x = 347,841,437,445.34
  5. Step 5: Solve for x
    x = 347,841,437,445.34/678,719.48
  6. Step 6: Final answer
    x = 512,496.62

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1.5x scale

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.