Home / 1,315,720.80-1,973,580.04-495,212.71

Finding the Fourth Proportional to 1,315,720.80, 1,973,580.04 and 495,212.71

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Solution

The fourth proportional to 1,315,720.80, 1,973,580.04 and 495,212.71 is: 742,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,720.80 : 1,973,580.04 = 495,212.71 : x
  2. Step 2: Convert to fraction form
    1,315,720.80/1,973,580.04 = 495,212.71/x
  3. Step 3: Cross multiply
    1,315,720.80x = 1,973,580.04 × 495,212.71
  4. Step 4: Simplify right side
    1,315,720.80x = 977,341,910,142.41
  5. Step 5: Solve for x
    x = 977,341,910,142.41/1,315,720.80
  6. Step 6: Final answer
    x = 742,818.62

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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.