Home / 917,240.40-1,375,795.80-318,056.40

Finding the Fourth Proportional to 917,240.40, 1,375,795.80 and 318,056.40

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Solution

The fourth proportional to 917,240.40, 1,375,795.80 and 318,056.40 is: 477,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,240.40 : 1,375,795.80 = 318,056.40 : x
  2. Step 2: Convert to fraction form
    917,240.40/1,375,795.80 = 318,056.40/x
  3. Step 3: Cross multiply
    917,240.40x = 1,375,795.80 × 318,056.40
  4. Step 4: Simplify right side
    917,240.40x = 437,580,659,283.12
  5. Step 5: Solve for x
    x = 437,580,659,283.12/917,240.40
  6. Step 6: Final answer
    x = 477,062.13

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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.