Home / 1,038,065.25-1,557,323.55-318,409.80

Finding the Fourth Proportional to 1,038,065.25, 1,557,323.55 and 318,409.80

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Solution

The fourth proportional to 1,038,065.25, 1,557,323.55 and 318,409.80 is: 477,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,065.25 : 1,557,323.55 = 318,409.80 : x
  2. Step 2: Convert to fraction form
    1,038,065.25/1,557,323.55 = 318,409.80/x
  3. Step 3: Cross multiply
    1,038,065.25x = 1,557,323.55 × 318,409.80
  4. Step 4: Simplify right side
    1,038,065.25x = 495,867,080,090.79
  5. Step 5: Solve for x
    x = 495,867,080,090.79/1,038,065.25
  6. Step 6: Final answer
    x = 477,683.92

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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.