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Finding the Fourth Proportional to 646,675.22, 892,411.98 and 374,900.64

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Solution

The fourth proportional to 646,675.22, 892,411.98 and 374,900.64 is: 517,362.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,675.22 : 892,411.98 = 374,900.64 : x
  2. Step 2: Convert to fraction form
    646,675.22/892,411.98 = 374,900.64/x
  3. Step 3: Cross multiply
    646,675.22x = 892,411.98 × 374,900.64
  4. Step 4: Simplify right side
    646,675.22x = 334,565,822,445.67
  5. Step 5: Solve for x
    x = 334,565,822,445.67/646,675.22
  6. Step 6: Final answer
    x = 517,362.99

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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.