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Finding the Fourth Proportional to 646,210.89, 969,666.30 and 622,649.61

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Solution

The fourth proportional to 646,210.89, 969,666.30 and 622,649.61 is: 934,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,210.89 : 969,666.30 = 622,649.61 : x
  2. Step 2: Convert to fraction form
    646,210.89/969,666.30 = 622,649.61/x
  3. Step 3: Cross multiply
    646,210.89x = 969,666.30 × 622,649.61
  4. Step 4: Simplify right side
    646,210.89x = 603,762,343,525.14
  5. Step 5: Solve for x
    x = 603,762,343,525.14/646,210.89
  6. Step 6: Final answer
    x = 934,311.62

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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.