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Finding the Fourth Proportional to 570,625.19, 787,462.20 and 315,976.37

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Solution

The fourth proportional to 570,625.19, 787,462.20 and 315,976.37 is: 436,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,625.19 : 787,462.20 = 315,976.37 : x
  2. Step 2: Convert to fraction form
    570,625.19/787,462.20 = 315,976.37/x
  3. Step 3: Cross multiply
    570,625.19x = 787,462.20 × 315,976.37
  4. Step 4: Simplify right side
    570,625.19x = 248,819,447,468.21
  5. Step 5: Solve for x
    x = 248,819,447,468.21/570,625.19
  6. Step 6: Final answer
    x = 436,047.08

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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.