Home / 372,683.20-513,323.04-286,477.12

Finding the Fourth Proportional to 372,683.20, 513,323.04 and 286,477.12

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Solution

The fourth proportional to 372,683.20, 513,323.04 and 286,477.12 is: 394,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,683.20 : 513,323.04 = 286,477.12 : x
  2. Step 2: Convert to fraction form
    372,683.20/513,323.04 = 286,477.12/x
  3. Step 3: Cross multiply
    372,683.20x = 513,323.04 × 286,477.12
  4. Step 4: Simplify right side
    372,683.20x = 147,055,306,128.85
  5. Step 5: Solve for x
    x = 147,055,306,128.85/372,683.20
  6. Step 6: Final answer
    x = 394,585.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.