Home / 434,314.80-651,909.60-209,855.70

Finding the Fourth Proportional to 434,314.80, 651,909.60 and 209,855.70

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Solution

The fourth proportional to 434,314.80, 651,909.60 and 209,855.70 is: 314,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,314.80 : 651,909.60 = 209,855.70 : x
  2. Step 2: Convert to fraction form
    434,314.80/651,909.60 = 209,855.70/x
  3. Step 3: Cross multiply
    434,314.80x = 651,909.60 × 209,855.70
  4. Step 4: Simplify right side
    434,314.80x = 136,806,945,444.72
  5. Step 5: Solve for x
    x = 136,806,945,444.72/434,314.80
  6. Step 6: Final answer
    x = 314,994.90

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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.