Home / 678,687.60-1,018,031.40-584,209.20

Finding the Fourth Proportional to 678,687.60, 1,018,031.40 and 584,209.20

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Solution

The fourth proportional to 678,687.60, 1,018,031.40 and 584,209.20 is: 876,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,687.60 : 1,018,031.40 = 584,209.20 : x
  2. Step 2: Convert to fraction form
    678,687.60/1,018,031.40 = 584,209.20/x
  3. Step 3: Cross multiply
    678,687.60x = 1,018,031.40 × 584,209.20
  4. Step 4: Simplify right side
    678,687.60x = 594,743,309,768.88
  5. Step 5: Solve for x
    x = 594,743,309,768.88/678,687.60
  6. Step 6: Final answer
    x = 876,313.80

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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.