Home / 874,989.60-1,312,322.40-243,772.80

Finding the Fourth Proportional to 874,989.60, 1,312,322.40 and 243,772.80

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Solution

The fourth proportional to 874,989.60, 1,312,322.40 and 243,772.80 is: 365,614.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,989.60 : 1,312,322.40 = 243,772.80 : x
  2. Step 2: Convert to fraction form
    874,989.60/1,312,322.40 = 243,772.80/x
  3. Step 3: Cross multiply
    874,989.60x = 1,312,322.40 × 243,772.80
  4. Step 4: Simplify right side
    874,989.60x = 319,908,505,950.72
  5. Step 5: Solve for x
    x = 319,908,505,950.72/874,989.60
  6. Step 6: Final answer
    x = 365,614.07

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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.