Home / 689,625.80-1,034,730.30-437,100.20

Finding the Fourth Proportional to 689,625.80, 1,034,730.30 and 437,100.20

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Solution

The fourth proportional to 689,625.80, 1,034,730.30 and 437,100.20 is: 655,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,625.80 : 1,034,730.30 = 437,100.20 : x
  2. Step 2: Convert to fraction form
    689,625.80/1,034,730.30 = 437,100.20/x
  3. Step 3: Cross multiply
    689,625.80x = 1,034,730.30 × 437,100.20
  4. Step 4: Simplify right side
    689,625.80x = 452,280,821,076.06
  5. Step 5: Solve for x
    x = 452,280,821,076.06/689,625.80
  6. Step 6: Final answer
    x = 655,835.12

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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.