Home / 678,834.40-1,018,251.60-235,602.40

Finding the Fourth Proportional to 678,834.40, 1,018,251.60 and 235,602.40

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Solution

The fourth proportional to 678,834.40, 1,018,251.60 and 235,602.40 is: 353,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,834.40 : 1,018,251.60 = 235,602.40 : x
  2. Step 2: Convert to fraction form
    678,834.40/1,018,251.60 = 235,602.40/x
  3. Step 3: Cross multiply
    678,834.40x = 1,018,251.60 × 235,602.40
  4. Step 4: Simplify right side
    678,834.40x = 239,902,520,763.84
  5. Step 5: Solve for x
    x = 239,902,520,763.84/678,834.40
  6. Step 6: Final answer
    x = 353,403.60

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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.