Home / 678,113.10-1,018,336.05-479,825.10

Finding the Fourth Proportional to 678,113.10, 1,018,336.05 and 479,825.10

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Solution

The fourth proportional to 678,113.10, 1,018,336.05 and 479,825.10 is: 720,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,113.10 : 1,018,336.05 = 479,825.10 : x
  2. Step 2: Convert to fraction form
    678,113.10/1,018,336.05 = 479,825.10/x
  3. Step 3: Cross multiply
    678,113.10x = 1,018,336.05 × 479,825.10
  4. Step 4: Simplify right side
    678,113.10x = 488,623,197,024.86
  5. Step 5: Solve for x
    x = 488,623,197,024.86/678,113.10
  6. Step 6: Final answer
    x = 720,562.98

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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.