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Finding the Fourth Proportional to 573,601.40, 860,427.70 and 218,785.40

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Solution

The fourth proportional to 573,601.40, 860,427.70 and 218,785.40 is: 328,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,601.40 : 860,427.70 = 218,785.40 : x
  2. Step 2: Convert to fraction form
    573,601.40/860,427.70 = 218,785.40/x
  3. Step 3: Cross multiply
    573,601.40x = 860,427.70 × 218,785.40
  4. Step 4: Simplify right side
    573,601.40x = 188,249,018,515.58
  5. Step 5: Solve for x
    x = 188,249,018,515.58/573,601.40
  6. Step 6: Final answer
    x = 328,187.86

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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.