Home / 405,025.08-607,537.68-316,145.40

Finding the Fourth Proportional to 405,025.08, 607,537.68 and 316,145.40

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Solution

The fourth proportional to 405,025.08, 607,537.68 and 316,145.40 is: 474,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,025.08 : 607,537.68 = 316,145.40 : x
  2. Step 2: Convert to fraction form
    405,025.08/607,537.68 = 316,145.40/x
  3. Step 3: Cross multiply
    405,025.08x = 607,537.68 × 316,145.40
  4. Step 4: Simplify right side
    405,025.08x = 192,070,242,858.67
  5. Step 5: Solve for x
    x = 192,070,242,858.67/405,025.08
  6. Step 6: Final answer
    x = 474,218.15

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1.5x scale

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.