Home / 678,353.40-1,017,552.96-341,210.25

Finding the Fourth Proportional to 678,353.40, 1,017,552.96 and 341,210.25

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Solution

The fourth proportional to 678,353.40, 1,017,552.96 and 341,210.25 is: 511,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,353.40 : 1,017,552.96 = 341,210.25 : x
  2. Step 2: Convert to fraction form
    678,353.40/1,017,552.96 = 341,210.25/x
  3. Step 3: Cross multiply
    678,353.40x = 1,017,552.96 × 341,210.25
  4. Step 4: Simplify right side
    678,353.40x = 347,199,499,869.84
  5. Step 5: Solve for x
    x = 347,199,499,869.84/678,353.40
  6. Step 6: Final answer
    x = 511,826.87

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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.