Home / 792,386.40-1,189,357.20-393,477.60

Finding the Fourth Proportional to 792,386.40, 1,189,357.20 and 393,477.60

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Solution

The fourth proportional to 792,386.40, 1,189,357.20 and 393,477.60 is: 590,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,386.40 : 1,189,357.20 = 393,477.60 : x
  2. Step 2: Convert to fraction form
    792,386.40/1,189,357.20 = 393,477.60/x
  3. Step 3: Cross multiply
    792,386.40x = 1,189,357.20 × 393,477.60
  4. Step 4: Simplify right side
    792,386.40x = 467,985,416,598.72
  5. Step 5: Solve for x
    x = 467,985,416,598.72/792,386.40
  6. Step 6: Final answer
    x = 590,602.54

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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.