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Finding the Fourth Proportional to 713,609.60, 1,068,859.20 and 634,812.80

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Solution

The fourth proportional to 713,609.60, 1,068,859.20 and 634,812.80 is: 950,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,609.60 : 1,068,859.20 = 634,812.80 : x
  2. Step 2: Convert to fraction form
    713,609.60/1,068,859.20 = 634,812.80/x
  3. Step 3: Cross multiply
    713,609.60x = 1,068,859.20 × 634,812.80
  4. Step 4: Simplify right side
    713,609.60x = 678,525,501,557.76
  5. Step 5: Solve for x
    x = 678,525,501,557.76/713,609.60
  6. Step 6: Final answer
    x = 950,835.73

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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.