Home / 434,573.20-651,641.10-257,134.60

Finding the Fourth Proportional to 434,573.20, 651,641.10 and 257,134.60

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Solution

The fourth proportional to 434,573.20, 651,641.10 and 257,134.60 is: 385,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,573.20 : 651,641.10 = 257,134.60 : x
  2. Step 2: Convert to fraction form
    434,573.20/651,641.10 = 257,134.60/x
  3. Step 3: Cross multiply
    434,573.20x = 651,641.10 × 257,134.60
  4. Step 4: Simplify right side
    434,573.20x = 167,559,473,592.06
  5. Step 5: Solve for x
    x = 167,559,473,592.06/434,573.20
  6. Step 6: Final answer
    x = 385,572.50

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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.