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Finding the Fourth Proportional to 606,200.40, 907,745.40 and 578,206.80

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Solution

The fourth proportional to 606,200.40, 907,745.40 and 578,206.80 is: 865,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,200.40 : 907,745.40 = 578,206.80 : x
  2. Step 2: Convert to fraction form
    606,200.40/907,745.40 = 578,206.80/x
  3. Step 3: Cross multiply
    606,200.40x = 907,745.40 × 578,206.80
  4. Step 4: Simplify right side
    606,200.40x = 524,864,562,948.72
  5. Step 5: Solve for x
    x = 524,864,562,948.72/606,200.40
  6. Step 6: Final answer
    x = 865,826.82

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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.