Home / 485,880.67-670,545.36-268,088.27

Finding the Fourth Proportional to 485,880.67, 670,545.36 and 268,088.27

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Solution

The fourth proportional to 485,880.67, 670,545.36 and 268,088.27 is: 369,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,880.67 : 670,545.36 = 268,088.27 : x
  2. Step 2: Convert to fraction form
    485,880.67/670,545.36 = 268,088.27/x
  3. Step 3: Cross multiply
    485,880.67x = 670,545.36 × 268,088.27
  4. Step 4: Simplify right side
    485,880.67x = 179,765,345,518.93
  5. Step 5: Solve for x
    x = 179,765,345,518.93/485,880.67
  6. Step 6: Final answer
    x = 369,978.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.